HEUER CHRONOGRAPH RACING PRE-SERIES STEEL
Heuer/Leonidas. Made in 1971.
Fine and rare, water resistant stainless steel wristwatch with
round button chronograph and register.
Two-body, polished, flat bezel, hooded lugs, screwed-
down case back.
Blue, inner 1/5th seconds track, outer tachometer scale,
subsidiary dials for the seconds, and the 30-minute register.
Luminous steel baton hands.
Cal. 7734, rhodium-plated, 17 jewels, straight-line
lever escapement, monometallic balance, shock absorber,
self-compensating flat balance spring, index regulator.