Omega - Tank - Gold Diamond Dial - Solid 18k gold - Men - 1950-1959

Rare Omega Tank Diamond – Solid 18K Gold – Factory Diamond Dial – Mechanical

An exceptionally elegant and rarely encountered Omega Tank-style dress watch, crafted in solid 18K yellow gold and presented with a beautiful factory gold dial set with diamond hour markers. Its sculptural rectangular case, fluted dial and elongated architectural sides create a sophisticated Art Deco-inspired appearance.

At approximately 34 × 25 mm, this is a substantial rectangular watch for its period. The solid-gold components have an approximate weight of 20 grams, reinforcing the luxurious character of this special Omega creation.

Technical Details

Brand: Omega

Model: Rare Tank Diamond

Movement: Swiss mechanical Omega movement, manually wound

Functions: Hours, minutes and small seconds

Case: Solid 18K yellow gold

Gold fineness: 750 / 18K

Dimensions: Approximately 34 × 25 mm, excluding crown

Approximate gold weight: Approximately 20 grams

Crystal: Mineral glass

Dial: Rare factory gold dial with vertical fluted decoration

Hour markers: Factory-set diamond indexes

Seconds display: Small-seconds subdial at 6 o’clock

Strap: Generic black leather strap

Wrist size: Suitable for wrists up to approximately 20 cm

Buckle: Original Omega buckle

Box: Original vintage Omega presentation box

Water resistance: Not tested

Condition Report

Grade B – Preserved in attractive vintage condition, with signs of use consistent with its age. The solid-gold case and case back show scratches, small marks and surface wear, without diminishing the watch’s elegant architectural form. The rare gold dial remains visually impressive, with its fluted texture and diamond indexes catching the light beautifully.

The generic leather strap displays visible wear, while the original Omega buckle and presentation box add considerable charm to the complete ensemble.

Please examine all photographs carefully, as they form an essential part of the description. The approximately 20-gram gold weight is supplied as an estimate and is illustrated by the accompanying photograph. Water resistance has not been tested; contact with water should therefore be avoided.

Story & Heritage

Omega is celebrated for precision instruments and legendary sports watches, yet some of its most fascinating creations are the refined dress models produced for a highly discerning clientele. Rectangular watches allowed the manufacture to explore the geometry and elegance of the Art Deco tradition, transforming the wristwatch into an object of architecture as much as a timekeeper.

This rare example elevates that concept through a substantial solid 18K gold case and an extraordinary factory dial decorated with diamonds. The discreet small-seconds display preserves the classical balance of the composition, while the manually wound Omega movement recalls an era when winding a watch each morning was an intimate daily ritual.

Presented with its original Omega buckle and vintage Omega box, this is far more than a gold watch: it is a rare expression of Omega’s dress-watch heritage, combining precious materials, mechanical craftsmanship and understated brilliance.

Internal Reference Number - BGT 114