HEUER DAYTONA STEEL
Heuer, "Daytona, Automatic, Chronograph", case No. 357899, Ref. 110.203B. Made in 1977.
Fine, tonneau shaped, water resistant, self-winding, stainless steel wristwatch with registers, date,
tachometer and a stainless steel Heuer bracelet.
Two-body, polished and brushed, flat bezel, hooded lugs, screwed down case back, crown at 9.
Midnight blue with luminous white baton indexes, subsidiary dials for the 30-minute and 12-
hour register, outer minute and 1/5th second divisions, outermost tachometer scale, aperture for
the date. Luminous white baton hands.
Cal. 12, gilted, 17 jewels, straight line lever escapement, monometallic balance, shock absorber,
self-compensating flat balance spring, micro-rotor.