Automatic chronometer movement, 18kt yellow gold case and bracelet, fixed tachymeter bezel scale, analog dial with luminescent hands and markers, minute markers around outer rim, three sub-dials (seconds: 60-minute; minutes: small second - 30/12h), Oysterlock clasp, round 40mm case size, scratch resistant sapphire crystal, screw down crown, solid case back, water resistant to 100m / 330ft, Swiss made.