CROTON CRONOGRAFO CLAMSHELL, ANNI ’50

CROTON CLAMSHELL CHRONOGRAPH, 50S
Two-body tonneau Clamshell stainless steel case, n. 886239, sloped bezel, concave lugs, caseback with screws into the lugs, stamped Brevet 189190, round pushers. Not original stainless steel bracelet.
Silvered two-tone dial, signed, luminescent Arabic numerals, minute track and 1/5th of second fractions, black telemetric and blue tachymeter graduations, sunk subsidiary dials for seconds and 30-min register. Luminescent syringe-index hands.
Manual-winding movement, nickel-plated caliber Landeron 48, signed, 17 jewels, strips decoration, lever system, lever escapement, monometallic balance with screws, marked on the bridge COW, blued flat hairspring, Incabloc shock-absorber.
Diameter Ø: 37 mm
Note: working.