Speedmaster
CALIBRE 321
CHRONOGRAPH 39.7 MM
31130403001001
Bracelet: Steel
Case: Steel
Crystal: Sapphire
Dial: Black
Features: ChronographSmall secondsTachymeterTransparent case back
Movement: Manual
Size: 39.7 mm
Style: Gent
Water resistance: 5 bar / 50 metres / 167 feet