Replica Omega Speedmaster SeriesOmega Speedmaster 57 Co-Axial Black / Bracelet (331.10.42.51.01.001)

Brand: Omega Replica
Series: Speedmaster
Model: 331.10.42.51.01.001
Dial Color: Black
Dial Indexes: Stick / Dot
Dial Hands: Alpha
MBrand:Omega
Caliber:9300
Display:Analog
Jewels:54
Reserve:60 h
Frequency:28800 bph
Time:Hours, Minutes, Small Seconds
Date:Date
Chronograph:Chronograph, Column wheel
Additionals:Chronometer, Co-Axial Escapement
Case Material:Stainless steel
Case Glass:Sapphire
Case Back:Open
Case Shape:Round
Case Diameter:41.50 mm
Case Height:16.50 mm
Case Lug Width:20.00 mm
Bezel:Tachymeter
W/R:100.00 m
The Speedmaster 57 is a modern ode to Omega's first generation of Speedmasters. It features a case with straight lugs and a bezel with the tachymeter scale engraved. The same features were found on early versions of Omega's iconic chronograph, while later models feature the swirling 'lyre' lugs and a bezel with separate inlay still in use today.

As reference