Steel on Leather strap:4847.50.31
Caliber : 3612 4847.50.31
Each of OMEGA’s elegant De Ville Chronoscope timepieces is characterized by a unique and sporty design. This split-seconds model features a black dial with silvery 30-minute and 12-hour recorders, and a silvery small seconds dial.
There is a date window at the 11 o’clock position and a split-second hand allows a clear reading of the intermediate time. A scratch-resistant sapphire crystal covers this innovative dial. The bezel is mounted on a 41 mm stainless steel case and is presented on a black leather strap. This timepiece is powered by the Co-Axial calibre 3612, visible through the transparent caseback.
BRACELET
Material: Leather strap
Strap color: Black
Buckle type: Foldover clasp
Buckle material: Stainless steel
WATCH CASE & DIAL
Case: Steel
Case Diameter: 41 mm
Between lugs: 20 mm
Dial Colour: Black
Total product weight (Approx.): 115 g
DataSheet
https://www.omegawatches.com/media/pdf/watches/basic-functions/Guide_4847-50-31_English.pdf