L30 Longines HydroConquest Chronograph. Reference L3.644.4.56.6. Watch measures a good 41mm and is made from steel. Automatic movement base caliber Valjoux 7750. Sapphire crystal on the front and a closed case back. Waterproof 30ATM or 300 meters. Rotating aluminium bezel for with diving scale. Functions are hours, minutes, sub seconds, chronograph and date. This watch is fitted with the original black rubber strap (cut to size, will fit a wrist of up to 18cm) with some fine adjusting possible in the folding clasp (with security link). Naturally this watch is fitted with the original box and (undated) papers. A fantastic diving/sports watch with great value for money for a Valjoux 7750 movement! SOLD