Gerald Genta Arena Biretro Arena BrandGerald Genta CollectionArena ModelArena Biretro ReferenceBSP.Y.80.266.CA.BD.RUB Country of originSwitzerland Type of watchMen's Case materialTitanium Case diameter45 mm Case thickness5.90 mm Power reserve45 hours Water resistance100 m Manual windingHoursSecondsDateRetrograde minutesWristwatch