Ludwig Reference Model Case Diameter/Size Movement Ludwig Water-resistant to Strap 244 205 234 231 Ludwig 33 Ludwig Ludwig 38 Ludwig 38 Datum Stainless steel; sapphire crystal glass & sapphire crystal glass back Stainless steel; sapphire crystal glass & sapphire crystal glass back Stainless steel; sapphire crystal glass & sapphire crystal glass back Stainless steel; sapphire crystal glass & sapphire crystal glass back 32.8 mm 35.0 mm 37.5 mm 37.5 mm (Alpha) (Alpha) (Alpha) DUW 4101 3 atm 3 atm 3 atm 3 atm Velour leather beige Horween Genuine Shell Cordovan black Horween Genuine Shell Cordovan black Horween Genuine Shell Cordovan black
Nomos
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