Important Watches

Geneva, Mar 20, 2010

LOT 26

Longines Cal. 13ZN, Retour en Vol Longines, movement and case No. 5827517. Made circa 1940. Very fine and rare, 14K yellow gold wristwatch with square button fly-back chronograph, instantaneous 30-minute register and tachometer.

CHF 4,000 - 6,000

USD 3,700 - 5,500 / EUR 2,700 - 4,000

Sold: CHF 8,400

C. Three-body, polished and brushed, stepped bezel, concave lugs, snap-on case back. D. Black with painted gilt Arabic numerals , subsidiary dials for the 30-minute register and for the seconds, minute and 1/5th second divisions, outer tachometer scale. M. Cal. 13ZN, gilt, 18 jewels, straight line lever escapement, Glucydur balance, self compensating blued steel Breguet balance spring, shock absorber, index regulator. Dial, case and movement signed. Diam. 34 mm. Thickness 12.5 mm.


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Grading System
Grade: AA

Very good
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-01

Good

HANDS Original

Notes

Caliber 13ZN: Made in 1936, 13 ¼ ??? with 18.000 bhp. It was used between 1936 and 1942, to replace the former Longines caliber 13.33 dated 1913, due to its high production costs.