Our Swiss-Made Ronda 762 Quartz Movement has a battery life of up to 10 years. It is built by Ronda Group in their facility in Switzerland with stellar accuracy and reliability. The movement is designed to be a rugged workhorse and fits comfortably inside our Chivalrous watch case. CASE MEASUREMENTS Diameter 41mm, thickness 11mm, lug to lug 46mm, lug width 20mm CASE EXECUTION Brushed case, laser engraved caseback ring, open exhibition glass caseback, limited edition engraved caseback coin  GLASS Sapphire crystal glass finished with a medium blue tint and double sided anti-reflective coating DIAL Sunburst dials with chaffered indices, chaffered polished hands and roman numerals 12o'clock CROWN Stainless steel crown with W laser engraving STRAPS All straps have a 20mm lug distance and a quick release functionality allowing you to change straps without any tools required WATER RESISTANT 50 Metres / 5ATM