Omega D6672

The Omega D6672 is a vintage dress watch produced from approximately the mid-1960s to the early 1980s. Introduced around 1965 as part of Omega’s “International Collection” and also featured in the “US Collection” , it is significant for its elegant, understated luxury and ultra-thin design, embodying the horological trend towards slimmer, more refined timepieces of its era. Often associated with the Omega De Ville line, either as a precursor or an early example , the D6672’s enduring appeal lies in its timeless design, classic proportions (typically 33mm case), and the use of precious metals, primarily 14K gold. Its relatively long production run and variety of dial and case options, including rarer diamond-set and “Museum” dial versions , make it a notable and collectible vintage Omega.  

Specifications

Key Details & Variations

Case Analysis

The case of the Omega D6672 is predominantly crafted from solid 14K yellow gold, a material choice consistent with its positioning as a quality dress watch, particularly for the US market. While yellow gold was the prevailing choice, some rarer instances of 14K white gold cases are also documented. The relative scarcity of these white gold D6672 examples, when compared to their yellow gold counterparts, suggests they were produced in smaller numbers.  

In terms of dimensions, the D6672 typically features a case diameter of 33mm , with some sources noting slight variations such as 32.9mm. The lug-to-lug measurement is generally around 37mm to 38mm , contributing to a comfortable and proportionate presence on the wrist. A key characteristic is its thickness, consistently noted as thin, typically around 7mm to 8mm. This “thin” or “ultra-thin” profile was a significant design achievement, enabled by the slim manual wind Caliber 620 and 625 movements housed within.  

The case construction is generally a two-body design, often featuring a combination of polished and brushed finishes that enhance its visual appeal, complemented by straight lugs. The case back is typically a press-in or snap-on style. Case markings should include “14K Gold,” “Omega Watch Co.,” the reference number D6672, and relevant case numbers. A notable feature for collectors is the presence of an original, signed Omega winding crown, which confirms the watch’s authenticity and completeness.  

Dial Variations

The dial of the Omega D6672 is an area of significant diversity, offering a range of styles that catered to different tastes and market segments.

• Colors: Documented dial colors include classic silver , matte silver , warm champagne , crisp white , sophisticated matte black , and occasionally a striking blue.  
• Markers: Hour markers varied considerably. Options included applied yellow gold faceted baton indexes , traditional printed Roman numerals , and luxurious diamond markers. Diamond-set dials often featured a subtle three-diamond configuration.  
• Branding: The dials typically featured an applied Omega logo and printed “OMEGA” text, signifying the brand’s identity. The “SWISS” or “- SWISS -” designation is commonly found at the 6 o’clock position, indicating its Swiss origin.  
• Special Dials – The “Museum” Connection: A particularly noteworthy variant is the D6672 described with a “highly acclaimed modern art dial, black, three-diamond marker”. This design is linked to a watch whose aesthetic inspiration was selected by the Museum of Modern Art (MoMA) for its permanent collection, lending it a unique design pedigree.  

The originality and condition of the dial are paramount considerations for collectors. Repainted or restored dials, even if well-executed, can affect value, though some restorations are noted in the market.  

Hands and Crystal

The hands on the Omega D6672 were typically simple and elegant, in keeping with its dress watch character. Common styles include baton hands in yellow gold or black varnished hands for contrast against lighter dials. These hands were generally non-luminous. The originality and condition of the hands are crucial for collectors; one source notes a particular piece with “sloppily repainted” hands, a modification that would significantly detract from its value and authenticity.  

The crystal fitted to the D6672 was typically made of acrylic, often featuring a slight dome profile that adds to its vintage charm. While acrylic crystals can accumulate scratches over time, they can often be polished. The presence of an original Omega-signed acrylic crystal, if found, is a desirable feature for collectors.  

Notable Variants

• Diamond-Set Models: Diamond-set versions of the D6672 are frequently highlighted and represent a significant category. These range from subtle three-diamond hour markers, often on black dials , to potentially more elaborate settings. Factory-original diamond settings are highly desirable.  
• The “Museum Dial” / “Modern Art” Variant: This variant features a “highly acclaimed modern art dial,” typically black with a minimalist three-diamond marker configuration. Its design inspiration is linked to a watch design selected by MoMA, giving it a unique design pedigree.  
• Presentation Watches – The SUNOCO D6672: An example of a D6672 with a presentation engraving on the caseback for service to SUNOCO in 1982 is documented. Such provenance can add unique historical value. It’s noted that presentation engravings might not be uncommon for this type of watch.  
• White Gold Variants: 14K white gold versions are less common than yellow gold, offering a different aesthetic and potential rarity.  

Additional Details

An Introduction to the Omega D6672: A Vintage Dress Classic

The Omega D6672 emerges from the annals of horological history as a distinguished vintage dress watch, primarily gracing the horological landscape from the mid-1960s through the early 1980s. It is often lauded for its characteristic elegance and an air of understated luxury, frequently described as a “lovely vintage Omega DeVille dress watch” and an “absolutely gorgeous Omega manual-winding watch” that presents a “great dress size”.  

The initial appeal and design philosophy of the D6672 are deeply rooted in the horological trends of its era. This period witnessed a discernible shift towards slimmer, more refined timepieces, crafted for both formal occasions and sophisticated daily wear. The Omega D6672 stands as a quintessential embodiment of this trend. Its “ultra-thin” nature, with a case thickness often noted around 7 mm to 8 mm , was a significant design feature and a testament to Omega’s engineering capabilities, particularly with its slender manual wind movements.  

The enduring appeal of the D6672 lies significantly in its timeless design. Classic dress watches, characterized by clean lines and precious metal cases, possess an inherent ability to maintain their aesthetic relevance across decades. The D6672, with its typical 33mm case diameter, is historically accurate for men’s dress watches of its time. This dimension, while perhaps considered modest by some contemporary oversized standards, is increasingly appreciated by today’s collectors who seek vintage authenticity or versatile unisex options. Furthermore, the consistent emphasis on an “ultra-thin” profile remains a hallmark of horological refinement and sophistication. These attributes collectively suggest that the Omega D6672 is not merely an artifact of a bygone era but a piece of classic design that gracefully transcends fleeting horological fads.  

Historical Provenance and Lineage

Understanding the Omega D6672 requires an examination of its placement within Omega’s broader collections and its relationship with the esteemed De Ville series.

Placement within Omega’s Collections

The consistent “D” prefix in the reference number D6672, as seen across numerous sources , holds notable significance. Omega’s historical cataloging practices often employed prefixes to denote specific characteristics such as case material, intended market, or particular product lines. Given its prominent listing in the “US Collection” and the frequent use of 14K gold, the “D” prefix may well relate to watches specifically intended for or cased in the United States market. It could also represent an internal Omega code for a distinct case style or series. This hypothesis is further supported by Omega’s own database entries, which directly use “D 6672” when referencing the US Collection. Moreover, another reference, the D6666, is also listed in the US Collection and specified as being made of 14K gold , reinforcing the notion of the “D” prefix as a market or material designator. This points to a targeted marketing and distribution strategy by Omega, tailoring material choices to specific regional preferences or import regulations.  

The Omega D6672 is officially documented as part of Omega’s “International Collection,” with its introduction dating to 1965. This designation signifies its intended global market availability and underscores its importance within Omega’s comprehensive offerings during that period. Concurrent with its inclusion in the International Collection, Omega’s vintage database also categorizes the D6672 under its “US Collection”. This dual listing, particularly its strong association with the US market, likely explains the prevalence of 14K gold for its case construction—a common standard in the American market at the time, as opposed to the 18K gold often seen in European models.  

Relationship with the Omega De Ville Series

Many examples of the D6672 are explicitly referred to as “Omega De Ville D6672” in various listings and descriptions. The De Ville line, which was officially launched as a separate and distinct collection by Omega in 1967, quickly became renowned for its elegant and contemporary designs, often featuring the slimmer case profiles that were gaining popularity.  

Even if not always formally branded as “De Ville” on the dial in its earliest iterations (particularly those produced before the De Ville line’s official 1967 launch), the D6672’s inherent design characteristics—such as its slim profile and decidedly dressy appearance—strongly align with the De Ville philosophy. The De Ville line effectively consolidated Omega’s diverse range of dress watch offerings under a single, cohesive identity. The D6672, introduced around 1965 , fits perfectly as either an aesthetic precursor to, or an early embodiment of, the De Ville spirit. Indeed, one source explicitly describes it as a “Vintage Omega DeVille Ultra Thin D 6672”. Omega’s own vintage database lists the D6672 under the “US Collection” , while numerous auction listings and dealer offerings clearly link the D6672 reference to the De Ville name. This suggests that the D6672 reference likely straddled Omega’s general collections and the newly emerging, prestigious De Ville identity. This strong connection to the De Ville lineage undoubtedly enhances its appeal to collectors who specifically focus on this elegant series.  

Production Timeline and Evolution

The Omega D6672 was introduced circa 1965, as indicated by its inclusion in the “International Collection 1965”. Examples of this reference are found dated throughout the 1970s, with specific mentions of 1970 , 1974 , 1977 , and a general range of 1970-1979. Some sources further indicate that production continued into the early 1980s, with references to “circa late 1970s/early 1980s” and specifically circa 1982.  

This evidence points to the D6672 reference enjoying a relatively long production run, spanning approximately 15 to 20 years. Such longevity is indicative of the model’s sustained popularity and market success. This extended period of manufacture also allowed for the incorporation of subtle evolutionary changes, most notably movement updates (from the Caliber 620 to the Caliber 625 around 1973) and the introduction of a diverse variety of dial designs. It is important to note that the “International Collection 1965” designation likely marks the introduction year of the model, not the cessation of its production. The D6672’s enduring presence in Omega’s catalog for nearly two decades suggests it was a successful and versatile model for the brand, capable of adapting to evolving tastes while retaining its core appeal.  

Omega Caliber 620

The Omega Caliber 620 was launched in 1960. Its key technical specifications include 17 jewels, a balance frequency of 19,800 alternations per hour (A/h) (or 2.75 Hz), and a power reserve of approximately 42 hours. It typically featured Incabloc shock protection and was often adjusted to two positions for improved timekeeping accuracy. The hand sizes for this two-hand movement are 1.10mm for the hour hand and 0.55mm for the minute hand. The movement itself has a diameter of 17.5mm and a remarkably slim height of just 2.5mm, facilitating the thin case designs of watches like the D6672.  

The Caliber 620 is found in earlier models of the D6672, which is consistent with its 1960 launch year and its production run through 1973. Omega’s own historical database confirms the use of the Caliber 620 for the reference D6672 as part of the 1965 International Collection. The movement is often described as having a “copper-colored” finish. A detailed watch service walkthrough for an Omega De Ville housing a Caliber 620 illustrates its construction, components, and the general procedures involved in its maintenance.  

Omega Caliber 625

The Omega Caliber 625 was introduced in 1973, effectively succeeding the Caliber 620 in many applications. Like its predecessor, it is a 17-jewel manual wind movement with a 42-hour power reserve and Incabloc shock protection. A key difference is its higher balance frequency of 21,600 A/h (3 Hz). The hand sizes remain 1.10mm x 0.55mm, and its dimensions are also 17.5mm in diameter and 2.5mm in height. The Caliber 625 is noted to share many parts with Omega’s automatic Caliber 670 family.  

The Caliber 625 is found in later production models of the D6672, consistent with its 1973 launch and its own production period extending through 1979. An online service report for an Omega dress watch equipped with a Caliber 625 provides valuable insights into its specific architecture, such as its ¾ plate bridge, and details the steps for its disassembly and reassembly.  

The transition from the Caliber 620 to the Caliber 625 around 1973 represents a key evolutionary point for the Omega D6672 and for Omega’s thin manual movements of that era. The primary technical advancement in the Caliber 625 was its higher beat rate (21,600 A/h compared to the 19,800 A/h of the Caliber 620). A higher frequency can theoretically contribute to greater timekeeping precision and stability, although for a two-hand watch without a seconds hand, the visual smoothness of a sweep seconds hand is not a factor. This upgrade aligns with Omega’s general trend of movement development and refinement during that period, seeking incremental improvements in performance. For collectors, knowledge of the specific movement housed within a D6672 can serve as a useful marker to help approximate the watch’s production date (generally pre- or post-1973). While both the Caliber 620 and Caliber 625 are robust, reliable, and commendably slim, the Caliber 625 represents a slight technical progression. This variation could be a point of particular interest for technically-minded collectors.  

Market Performance, Valuation, and Collectibility

The market valuation of the Omega D6672 is subject to a range of factors, reflecting its status as a vintage timepiece with diverse characteristics.

Analysis of Auction Results and Dealer Pricing

Auction estimates for the Omega D6672 show considerable variation. Figures range from as low as $254 – $381 for a model identified as “De Ville 6672” , to $556 – $714 for a D6672 equipped with a Caliber 625 , and $750 – $1,000 for a white gold D6672 or a yellow gold 1970 example. One source also indicates a higher estimate of $1,000 – $1,500 for a yellow gold D6672 from 1970.  

Reported sale prices also present a wide spectrum. A “Latest Sale Price” of $6,400 USD (dated December 2024) is noted , which appears exceptionally high compared to other available data and may represent an outlier, a particularly rare variant, or an example with exceptional provenance or condition. A more typical recent sale price is reported at $2,310 USD (dated March 2025).  

Dealer asking prices provide another perspective. A D6672 (potentially with a Caliber 620/625, though listed with a likely typographical error as Cal. 652) was sold for $1,295 in 2011. More recently, MyGemma lists a 14K white gold D6672 with a Caliber 620 movement for $2,250 (on sale from an original price of $2,500).  

General price guides offer broad market overviews. For the “Omega 6672,” one source indicates a median auction value over the last 12 months (based on over 9,000 watches) of $1,190 USD, with an auction range from $301 to $121,160 USD. The median dealer value (based on over 48,000 watches) is cited as $5,030 USD, with a dealer range from $304 to $453,540 USD. When narrowed to “Omega De Ville D6672,” the median auction value (661 watches) is $1,100 USD, with a range of $301 – $21,800 USD, and the median dealer value (5,518 watches) is $4,870 USD, with a range of $301 – $198,000 USD. However, the very large number of watches included in these aggregates suggests they encompass many different Omega models, not solely the D6672, making these guides less specific for this particular reference.  

The significant fluctuation in reported values and the broadness of aggregated price guides highlight challenges in pinpointing a precise market value for any given D6672. The wide range indicates that the market for this reference is highly dependent on the specific attributes of the individual watch. The $6,400 sale price mentioned requires careful scrutiny; without detailed information about that specific watch (such as an extremely rare dial, exceptional provenance, or mint condition complete with original box and papers), it is difficult to contextualize this figure. It could be an anomaly or represent a truly exceptional piece. More realistic dealer asking prices for good to excellent examples of the D6672 appear to be in the $1,200 to $2,500 range , while auction estimates frequently fall below the $1,000 to $1,500 mark for standard models. This underscores the necessity for individual appraisal based on a watch’s unique attributes rather than relying solely on generic price data.  

Factors Influencing Value

Several key factors influence the market value of an Omega D6672:

• Condition: As with all vintage watches, condition is paramount. Unpolished cases that retain their original lines and finish , original dials in excellent, unrestored condition , and well-maintained movements in good running order significantly increase value.  
• Rarity and Dial Type: Certain dial variations command a premium. Diamond-set dials , particularly the distinctive “Museum” art dial , are generally more valuable than standard versions. Similarly, cases made from 14K white gold are rarer than their 14K yellow gold counterparts and thus may achieve higher prices.  
• Provenance and Originality: Watches with documented provenance, such as presentation pieces like the SUNOCO D6672 , can carry a premium due to their unique history. The presence of original box and papers, an original signed Omega crown, and an original Omega strap or buckle also adds to the value and desirability.  
• Movement: While both the Caliber 620 and Caliber 625 are respected movements, some collectors might have a slight preference for one over the other. More practically, the movement type can help in dating the watch, which can indirectly affect value perception.

The D6672 as a Collector’s Item

The Omega D6672 is often described as a “classic, dress/formal, luxury” timepiece , “elegant” , and represents an “affordable solid gold vintage watch from a powerhouse brand”. Its appeal to collectors lies in its combination of understated Omega quality, a precious metal case, and a reliable Swiss mechanical movement, all often available at a relatively accessible price point for vintage gold watches.  

Indeed, the D6672 offers a solid entry point for individuals looking to acquire a vintage gold timepiece from a prestigious brand like Omega without the higher price tags often associated with more complicated or iconic models, such as vintage Speedmasters or gold Constellations. The typical price range (excluding extreme outliers) makes it more attainable for a broader range of collectors. It provides the intrinsic value of a solid gold case and a quality Swiss mechanical movement. Furthermore, the variety of styles, particularly in dial configurations, allows collectors to find a D6672 that suits their personal taste. This positions the D6672 as a discerning choice for budding collectors or for those seeking a refined and elegant vintage watch for regular wear.