Heuer Ref. 150.511

HEUER REF. 150.511 MONZA AUTOMATIC CHRONOGRAPH STEEL Heuer "Monza" Automatic Chronograph, case No. 336231, Ref. 150.511. Made in the 1980s. Fine, tonneau-shaped, self-winding, water-resistant, stainless steel wristwatch with round button chronograph, registers, tachometer and date. Two-body, polished and brushed, screwed-down case back, flat bezel, winding crown at 9. Black with applied luminous baton indexes, outer 1/5th seconds track and tachometer scale to 200 UPH, subsidiary dials for the 30-minute and 12-hour registers, aperture for the date at 6. Luminous white and black baton hands. Cal. 15, gilt brass, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring. Notes Dial, case and movement signed. DIM. 39 x 44 mm. THICKNESS 14 mm.