LECOULTRE REF. 857 DEEP SEA
ALARM AUTOMATIC STEEL
LeCoultre, Deep Sea Alarm Automatic, No. 1389440,
case No. 793732, Ref. 857. Made in 1959.
Fine, center seconds, self-winding, water-resistant, stainless
steel wristwatch with alarm and 2 crowns. Accompanied by a
Jaeger Lecoultre extract from the archives
Three-body, polished and brushed, lapidated lugs, graduated
black bezel, case back with outer screw ring and engraved with
the Deep Sea logo, the crown at 2 o'clock activates the central
revolving alarm dial, the one at 4 o'clock is for time-setting and
Bicolor black and silver with luminous baton indexes, outer
5-minute/second radial Arabic markers, at the center, revolving
alarm setting dial. Luminous steel dauphine hands.
Cal. K815, rhodium-plated, 17 jewels, straight-line lever escapement,
monometallic balance, shock absorber, self compensating
flat balance spring, index regulator, bumper-type rotor.