LE RÉGULATEUR GRAVÉ BLEU Technical Description CASE MATERIAL Polished stainless steel CASE DIAMETER 39 mm CASE BACK See through GLASS Domed sapphire crystal with anti-reflective treatment on both sides WATER RESISTANCE 5 bars (50 m/165 ft) MOVEMENT CALIBRE Sellita SW266-1A MOVEMENT Automatic Regulator FUNCTIONS HMS POWER RESERVE Around 38 hours DIAL & HANDS DIAL Grained blue base dial. Engraved rhodium-plated indexes, numbers, and railroad tracks HANDS Rhodium-plated signature fir tree hands STRAP Light grey grained calf leather strap with tone-on-tone stitching, black grained calf leather lining BUCKLE Pin buckle