Omega S.A., Bienne, "Chronométrage", Movement No. 12780136, Cal. 201, 65 mm, 237 g, circa 1952
A rare, "electrical" deck chronometer with centre seconds and additional stoppable centre seconds hand and electrical and mechanical 30 seconds contact device. Every 30 seconds a seconds contact device is activated for 7 seconds - with original box and Bulletin 1ère Classe de l'Observatoire Astronomique et Chronométrique de Neuchatel, dated June 24, 1952 Case: steel, polished, movement protection cap, screw back, pusher for seconds stop at "1". Dial: enamel, Arabic numerals, "Omega Chronométrage inventory number": 7, centre seconds, signed, blued Éventail hands. Movm.: 3/4 plate movement, rhodium-plated, "fausses côtes" decoration, finely ground chronograph steel parts, finely ground scissor-shaped double hand tong with separate ratchet wheel for split seconds chronograph, hack feature, Guillaume screw compensation balance, index spring fine adjusting device.
The "electric" split seconds chronograph emits a visual and audible starting signal at five seconds before 30 seconds and the minute mark each.
A similar watch is illustrated and described in: "Omega" by Marco Richon, Biel 2007, page 566.
Estimate 5,000 - 7,000 €
This is a lot of a former auction!
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