Calibre Sellita SW261-1 MOVEMENT Automatic FUNCTIONS HMS POWER RESERVE Around 38 hours CASE MATERIAL Stainless steel CASE DIAMETER 42 mm CASE BACK See through GLASS Bombed sapphire with anti-reflective treatment on both sides WATER RESISTANCE 5 bars (50 m/165 ft) DIAL Matt black varnish, interlocking square pattern made by hand guilloché in the traditional way by Fehr & Cie SA, rhodium-plated, hour circle+“Swiss Guilloché Main” transferred in powdered silver HANDS Signature fir tree hands in blued steel STRAP Black grained calf leather with tone-on-tone stitching, blue grained calf leather lining, functional catch spring bars enabling the strap to be changed quickly BUCKLE Pin buckle STRAP DIMENSIONS 22/20 mm, 80/115 mm