HEUER MONTREAL REF. 110.503 BLUE DIAL STEEL
Heuer, "Montreal, Automatic, Chronograph,", case No. 311294,
Ref. 110.503B. Made in 1972.
Fine, tonneau-shaped, water resistant, self-winding, stainless
steel wristwatch with round button chronograph, registers,
date, tachometer, pulsometer and a stainless steel Heuer
Two-body, polished and brushed, crown at 9, hooded
lugs, screwed down case back, sapphire crystal.
Bicolor blue and silver with applied luminous steel baton
indexes, outer 1/5th seconds divisions, outermost tachometer
and pulsometer scales, subsidiary dials for the 12-hour
and 30-minute registers, aperture for the date at 6. Luminous
red baton hands.
Cal. 12, gilt brass, 17 jewels, straight-line lever escapement,
monometallic balance, shock absorber, self-compensating
flat balance spring, index regulator, micro rotor.