Rare Swiss stainless steel Art Deco pocket watch Circa 1945

Observation lever watch with open face by Omega
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An extremely rare Swiss oversize Omega steel military observation watch with centre second, circa 1945.
Red gold Omega lever movement calibre 30T2SC, 16 jewels, work number 10594671, manual winding. Silvered dial, inner radial hours, outer minutes/seconds track, centre seconds, and silver hands. Flat, oversized stainless steel brushed case with reference number 1107-3. Case, dial and movement signed.
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Diameter: 57 mm
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Weight: 77 g
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Signed: Omega
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The reference 1107 is an absolute rarity. The size and the extra long second hand made it possible to use it as an observation watch with a measuring accuracy of 1/5 of a second. Only a few copies of this reference have surfaced to date. One of these watches was made especially for the Arab king KING IBN SEOUD and bears his mark on the dial. The reference 1107 is one of the most popular pocket watches in a steel case today.
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Another example was auctioned in Geneva in 2019, estimated at CHF 8,000-14,000!