OMEGA CHRONOGRAPH CAL 33.3
SINGLE BUTTON CHRONOGRAPH STEEL
Omega, movement No. 9374456, case No. 9555248.
Made in the 1940s.
Very fine and very rare, stainless steel "Staybrite" wristwatch with olive shaped single-button chronograph, register,
telemeter, tachometer and exotic lugs.
Three-body, polished and brushed, flat stepped bezel,
mobile triple lugs, snap-on case back.
Matte silver with painted Arabic numerals, subsidiary dials
for the seconds and the 30 minute register, inner blue and red
telemeter scale, outer minute/seconds track, outermost
blue tachometer scale. Blued steel feuille hands.
Cal. 33.3 CHRO, matte gilt, 17 jewels, straight line lever
escapement, cut bi-metallic balance spring, blued steel Breguet
balance spring, index regulator.