Speedmaster Professional 42mm SS SMF 1:1 Silver Dial Black Marker On Black Rubber Strap A3861 (Free Straps)

Size     42mm x 13.5mm

Movement     Modified Asian 3861 Hand Winding chronograph movement

Functions     Hours, minutes, sub-seconds display and chronograph, The sub dial at 6 is 24 hours display.

Case     1:1 replicated solid 316L stainless steel case

Crystal     Scratch-proof sapphire crystal with AR coating

Dial     Silver Dial Black Marker

Bezel     Black ceramic tachymeter bezel

Strap    Black Rubber Strap

Clasp    Deployant clasp

Water resistance     Yes