The Omega Speedmaster Day-Date ref. 3823.30.01 has a stainless steel case and silver dial, driven by the self-winding caliber 1151 with day, date, month, 24-hour, time, and chronograph functions.
Movement Type
Automatic Chronograph
Caliber
1151Jewels
25
Reserve
42
Frequency
28800
Hands
Small Seconds
Shape
Round
Lug Distance
18.00 mm
Material
Stainless Steel
Glass
Sapphire
Diameter
39.00 mm
Water Resistance
30.00 m
Dial Color
Silver