Mondaine MH1.L2280.LH Helvetica No1 Light 38 Graphic edition Watch This Mondaine watch has a stainless steel case 38mm in diameter and is fitted with a leather strap. Inside the case lies a movement and the watch features a sapphire crystal. The watch is 3ATM. This means the watch is splash waterproof. The watch comes with 2 years warranty. EAN 7611382488800 Brand Mondaine Subcategory Light Name Helvetica No1 Light 38 Graphic edition Display Type Analog SwissMade Yes Water resistant 3 Bar (Wash hands) Colour of the dial Grey Hand colors (h,m,s) Silver, Silver, White Watch case information Case code MH1.L2 Diameter 38 mm Case Thickness 7.