TECHNICAL SPECIFICATIONS  Reference: AR.UN.13A.001.501.901  CASE  Stainless steel, UNITY construction  Two screwed-in crescent moons with built-in horns  crown with AR symbol  Transparent case back with sapphire  Diameter: ø 43 mm  Water resistance: 100 m  MOVEMENT  Self-winding mechanical movement, AR 285  Power reserve: 42 hours  FUNCTIONS  Hour, minute, second, date, Day & Night and moonphase  DIAL & HANDS  Silver  AR Compass-like hands with Super-LumiNova  STRAP  Blue or grey calf leather strap 20/20 optional, textil Blue or black  Folding buckle, single swing