1 in stock

Wyler Dynawind Heavy Duty 660 “Life Guard”

This Wyler Dynawind Heavy Duty 660, also known as the “Life Guard,” is a stunning example of 1960s tool watch design with a distinctive flair. The most striking feature is its champagne dial, decorated with a unique grid pattern that offers incredible visual texture. Applied gold-tone indices with black centers provide sharp legibility, perfectly matching the handset. The robust stainless steel case is accented by a brilliant, gold-tone fluted bezel that adds a touch of elegance to its utilitarian roots. Wyler’s proprietary “incaflex” shock protection system, and a reliable “Dynawind” automatic movement. The watch remains all original with it’s “W” signed crown and comes on a deep green textured leather strap that beautifully complements the dial and bezel, creating a truly unique and stylish vintage package.

1 in stock

1 in stock

General

Brand

Model Line

Dynawind Heavy Duty

reference

4843 / 1D1168M

Manufactured

Switzerland

Department

Men

Dial Color

Black

,

Champagne

Case

Case Shape

Round

Bezel

Fluted

Case Material

Gold Plate

,

Stainless Steel

Case Width

35.2mm

Case Height

43mm

Strap / Bracelet

Lug Width

18mm

Strap Material

Leather

Strap Color

Green

Clasp

Buckle

Max Wrist Size

8.5"

Movement

Movement

Automatic

Accuracy

>10 seconds

The movement showed a daily accuracy deviation ranging from 0 to 10 seconds across six positions.

Extras

Warranty Every watch sold by Ottuhr comes with a 1-year mechanical warranty. Select pieces may also include additional guarantees or extended coverage.

1-Year Ottuhr Warranty

Original Box

No

Original Papers

No

Overview

The Wyler story is one of obsessive innovation. Paul Wyler’s masterstroke was the Incabloc balance wheel, a revolutionary design patented in 1927 that used flexible arms to absorb shock, making his movements famously durable. How durable? In one of the most audacious marketing stunts in watchmaking history, Wyler had their watches dropped from the top of the Eiffel Tower in 1956—and they kept on ticking. The “Heavy Duty 660” designation on this model wasn’t just for show; it signified a water resistance of 660 feet, achieved through a robust, front-loading monocoque case. This was serious tool-watch engineering, wrapped in a package of pure 1960s swagger.

This particular example is a fantastic specimen of the breed. What immediately grabs you is that stunning “graph paper” crosshatch dial. It’s a texture you just don’t see, giving the watch a technical, architectural feel that is utterly unique. The applied gold-tone markers with their black onyx inserts add a layer of depth and sophistication, perfectly complemented by the sharp dauphine handset. But the visual feast doesn’t stop there. The case is crowned with a wildly cool, heavily textured gold-plated bezel that feels more like a piece of brutalist sculpture than a simple watch component. It’s a design that is both rugged and unapologetically elegant.

Turning the watch over, the stainless steel caseback bears a hand-engraved set of initials: “J.R.C.” Far from being a flaw, this is a tangible connection to a past life, a whisper of a story from the original owner. We love these kinds of details. The watch shows honest wear, with some gentle brassing to the high points of the gold-plated bezel and lugs, giving it a character that can only be earned over decades. The dial itself is immaculate, and the original signed “W” crown is still present. This is a survivor, a watch that has clearly seen a bit of the world.

Timing: The watch has been measured with a timegrapher at six different positions. The rate, amplitude, and beat error are within acceptable ranges.

Functions: All functions including the crown winding, time setting, etc are working as expected.

Integrity: The movement shows no signs of damage, rust, or corrosion, with all components appearing clean and well-maintained.

Authenticity: Each timepiece is evaluated and authenticated in-house. This watch is guaranteed to be correct to its manufacturer and time period.

Warranty: This timepiece includes a 1-year mechanical warranty, activated upon the date of purchase. 

Shipping: This timepeice includes complimentary insured shipping within all 50 states. 

Returns: If, for any reason, you are not entirely satisfied with your purchase, you may return the product for a full refund within 30 days from the date you received or signed for the item.

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