OMEGA
310.32.42.50.01.002 Speedmaster
ROUND
Domed, scratch‑resistant sapphire crystal
sapphire crystal with anti‑reflective treatment
Steel
Aluminium bezel ring
42 MM
50 M
Black dial
Small seconds sub-dial, 30-minute recorder and 12-hour recorder
50H
AUTOMATIC WINDING
OMEGA 3861
Chronograph
Leather strap
Black
FOLD-OVER CLASP