OMEGA REF. 2277 CHRONOGRAPH STAINLESS STEEL
Omega, No. 10828765, Ref. 2277-2. Made in the late 1950s.
Fine, stainless steel wristwatch with square button chronograph,
registers, tachometer and telemeter.
Three-body, polished and brushed, triangular concave lugs.
Matte silver with printed Arabic numerals, 1/5th seconds divisions,
outer tachometer and telemeter scales, subsidiary guilloché
dials for the constant seconds, the 30-minute and 12-hour registers.
Blued steel épée hands.
Cal. 27 CHRO C 12, rhodium-plated, 17 jewels, straight-
line lever escapement, monometallic balance, shock absorber,
self-compensating blued steel Breguet balance spring, index
regulator.