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Fortis

Vintage Fortis D4031U

$500.00
Shipping calculated at checkout.

The vintage Fortis D4031U watch was produced in the 1940s and is known for its robust construction and utility-driven design. Built for durability and everyday reliability, it reflects a focus on practical engineering and understated functionality. Highly sought after by collectors today, the D4031U stands as a timeless example of purposeful mid-century watchmaking.
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  • The History:

Fortis is one of the few watchmakers in the world that remains, to this day, an independent company with a rich history in Swiss watchmaking. Fortis was founded in 1912 by Walter Vogt. In 1926, Fortis, in collaboration with watch inventor John Harwood, introduced the first automatic watch to be put into production, thereby setting the stage for the emergence of many major brands on the market today, such as Rolex, Omega, and others. Later, in 1940, Fortis pioneered the way for one of the first water-resistant watches ever built.

  • The Watch:

The Fortis D4031U features a 34mm chrome-plated brass case with a domed acrylic crystal and a solid signed case back.  The black dial features an outer railroad-style minute track with large Arabic numerals, a syringe-style hour and minute hand, and a small seconds register at the 6 o’clock position.  The D4031U is powered by the A.Schild Caliber AS1130 manual-wind movement, found in many of the WWII-era military timepieces.

  • The Details:

This vintage Fortis D4031U timepiece includes an aftermarket olive green fabric strap with a stainless steel buckle.
Specifications

Brand | Fortis

Reference | D4031U

Movement | Caliber AS1130

Model | D4031U

Strap | Nylon Strap

Crystal | Acrylic

Style | Fleiger Watches

Case Width | 34mm

Case Height | 11.2mm

Lug Width | 18mm

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