Longines. A rare and unusual stainless steel single button fly back chronograph wristwatch with black dial and central minute register

SIGNED LONGINES, BREVET, STOPSECOND MODEL, REF. 5681 MOVEMENT NO. 7'402'750, CASE NOS. 23'646 AND 8, MANUFACTURED IN 1950

Details

Longines. A rare and unusual stainless steel single button fly back chronograph wristwatch with black dial and central minute register
Signed Longines, Brevet, Stopsecond model, ref. 5681 movement no. 7'402'750, case nos. 23'646 and 8, manufactured in 1950
Cal. 12.68 Z mechanical movement, 17 jewels, black dial, luminous Arabic numerals, luminous hands, outer Arabic five minute railway divisions for 60 minutes register with central minute hand and central chronograph seconds hand, outer tachymetre scale, engine-turned subsidiary seconds, circular case, stepped bezel, snap on back, fly-back chronograph mechanism operated through a circular button in the band, case, dial and movement signed
37 mm. diam.

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Lot Essay

According to the Archives of Longines, the present watch, a reference 5681, was manufactured in 1950 and invoiced to the company's agent at the time Nederlandsche Horlogehandel or N.H. in Amsterdam, Holland, on 8 September 1950. The movement of the watch is registered as a 12.68 Z stop.

The "stop second" fly-back chronograph watch was commonly destined for military purpose and is increasingly difficult to find. This particular watch boasts a fine silvered tachymetre scale, nicely contrasting against the black gloss dial background.

For another example of a Stopsecond watch see Longines Watches by John Goldberger, pp. 142-143.

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