Omega Seamaster 168.035

The Omega Seamaster reference 168.035 was primarily produced around 1969, with some sources also citing circa 1970, and it belongs to the C-case family of Seamasters released in the early 1970s. This model is significant for several reasons: it features a distinctive “Jumbo” C-shape case (38.5mm) that offered a substantial wrist presence for its era; it houses the chronometer-certified Omega Calibre 564, a mark of superior timekeeping precision uncommon for Seamasters of that period which were more typical of the Constellation line ; and many examples featured robust cases manufactured by the esteemed Ervin Piquerez S.A. (EPSA). The Seamaster 168.035 is lauded as a sophisticated yet durable watch, suitable for daily wear, blending the versatile nature of the Seamaster line with enhanced specifications. It represents Omega’s commitment to quality and precision during the technologically dynamic period of the Space Race.  

Specifications

Key Details & Variations

Variations

The Omega Seamaster 168.035 is primarily known in stainless steel. Unlike its day-date counterpart (reference 168.034), which was available in stainless steel, gold-plated, and solid 18K gold, the date-only 168.035 reference appears to have been exclusively offered in stainless steel.  

Dial variations existed, with the most distinctive being a silver speckled finish. Black dial versions were also available. Furthermore, these dials could be found with or without luminous material (tritium) on the hour markers and hands.  

Correct Dial

The correct dial for a Seamaster 168.035 typically exhibits the following characteristics:

• Markings: An applied Omega logo at the top, with “OMEGA” and “AUTOMATIC” printed below it. Crucially for this reference, the text “CHRONOMETER OFFICIALLY CERTIFIED” is present, usually below “AUTOMATIC”. The word “Seamaster” appears at the bottom of the dial. The date window should have an applied metal surround.  
• Finish: The silver speckled finish is highly characteristic and sought after for its unique texture and visual depth. Plain black dials are also correct for this reference.  
• Hour Markers: Applied hour markers are a key feature, often described as silver “roof top” shaped with black inserts running down their centers. These markers contribute to the dial’s three-dimensional appearance.  
• Lume: When present, the luminous material was tritium, which often develops a patina over time, aging to shades of cream or yellow. As mentioned, non-luminous dial variants were also produced.  

Correct Hands

The hands of the Seamaster 168.035 should complement the dial design:

• Style: Typically, they are silver-toned, luminous (if the dial is lumed), and feature black inserts down their centers, mirroring the design of the hour markers. Within the broader C-case Seamaster family, stick-style hands have also been noted, though the black-insert style is most commonly associated with the “roof top” markers of the 168.035.  
• Lume: If lumed, the tritium in the hands should ideally show a patina consistent with the lume plots on the dial.  

Correct Case

The case of the Omega Seamaster 168.035 (and its interchangeable reference 168.0035 for the date-only chronometer version) has specific attributes:

• Shape and Dimensions: It features the distinctive “C-shape” design, measuring 38.5mm in diameter (excluding the crown), which was considered large or “jumbo” for its time. The case height is around 42mm, with a thickness of approximately 12mm to 12.7mm.  
• Material: Stainless steel is the correct material for reference 168.035.  
• Manufacturer: While not all cases were made by them, a significant number of 168.035 cases were produced by Ervin Piquerez S.A. (EPSA), a renowned specialist in water-resistant cases. These can often be identified by a small diving helmet logo stamped on the inside of the caseback.  
• Case Back: A screw-in case back is standard, featuring the embossed Seamaster Hippocampus logo on the exterior.  
• Finishing: The case typically exhibits a mix of finishes: a concentric brushed surface on the broad top of the mid-case, a radial brushed finish on the prominent bezel, and polished sides and case back. Original bevels on the lugs are desirable.  
• Crown: A knurled crown, often signed with the Omega logo, is semi-recessed from the front view but exposed from the rear for ease of setting.  
• Lug Width: An unusually wide 22mm lug width contributes to its substantial wrist presence and allows for more robust strap pairings.  
• Water Resistance (Original): The C-case Seamaster family, including the 168.035, generally had an original water resistance rating of 60 meters (6 bar / 200 feet). This rating is not guaranteed on vintage pieces without proper testing and seal replacement.  

Additional Details

The heart of the Seamaster 168.035 is the Omega Calibre 564. This is an automatic, self-winding movement that is “Chronometer Officially Certified,” signifying its high precision. Key features of the Calibre 564 include 24 jewels, an operating frequency of 19,800 vibrations per hour (vph), a power reserve of approximately 50 hours, and a quick-set date function (typically operated by repeatedly pulling the crown). It is known for its robustness and reliability.  

The watch was originally fitted with a plexiglass crystal. Original Omega plexiglass crystals from this era sometimes feature a tiny, almost invisible Omega logo etched into the center, a detail prized by collectors.  

Period-correct Omega stainless steel bracelets, such as the reference 1170 with 604 end links, were often paired with the Seamaster 168.035 and are noted for their comfort. Leather straps were also a common option.  

The Omega Seamaster 168.035 is considered a noteworthy vintage piece, offering a good entry point into high-quality vintage Omega ownership. Its value is influenced by condition, originality of parts (especially the dial, hands, and unpolished case), the presence of an EPSA case marking, and any accompanying box and papers. The “Jumbo” C-case, chronometer movement, and distinctive aesthetics make it appealing to collectors.  

Authenticating a Seamaster 168.035 involves checking for correct serial numbers (on the movement), consistent Omega branding, correct Calibre 564 movement markings, the Seamaster Hippocampus on the case back, and the EPSA diving helmet logo inside the case back if applicable. Originality of the dial (avoiding repaints with incorrect fonts or missing details like the date window outline) and hands is crucial.