Koppel 421 pays tribute to the original, timeless design created by Henning Koppel back in 1978. Koppel 421 offers a case diameter of 32 millimetres, a slender case design and a black dial. Certainly the perfect watch for any shirt cuff and a cool timepiece for business as well as pleasure. The watch is fitted with a high quality brown calfskin strap with a discreet pin buckle in stainless steel. Strap size Small is mounted on the watch. Change between straps is easy with the "easy-to-release" pin system. Other straps available for additional purchase: Calf: Black. Alligator: Black, dark brown, blue. Swiss Made. Type: 3 hands with date. Movement: ETA Quartz 955.412 H1. Case: 32 mm, Stainless steel. Crystal: Sapphire. Dial: Silver-coloured galvanic. Strap: Brown calfskin with steel pin buckle. Thickness: 7.40 mm. Water resistance: 3 ATM. Launch year: 2012.