Round
Slightly domed sapphire crystal
See-through case-back
Steel
42.8 mm
120 m
Midnight Blue fumé
72 h
Self-winding
HMC 250
Instead of a traditional seconds hand that rotates once every 60 seconds, the retrograde seconds mechanism follows an arc and resets every 30 seconds, with the seconds hand swiftly returning to its starting position
Rubber
Blue
Pin buckle