Hamilton American Classic Intra-Matic Auto Chrono

The Hamilton American Classic Intra-Matic Auto Chrono, reference H38446731, is a chronograph with a 40 mm steel case water resistant to 100 metres. Black PVD coats the case, which measures 14.45 mm thick and 49 mm from lug to lug, with a screw-down crown. The case sits on a perforated calfskin strap with 20 mm lugs and a pin buckle. Beneath a sapphire crystal, the black dial carries a date window and tachymeter scale, with yellow accents. Self-winding calibre H-31 maintains a 60-hour power reserve with a Nivachron balance spring.