H.Moser & Cie Mayu Mayu BrandH.Moser & Cie CollectionMayu ModelMayu Reference321.503-016 Country of originSwitzerland Type of watchMen's Case materialWhite gold Case diameter32 mm Case thickness9.3 mm Power reserve80 hours Water resistance30 m Manual windingHoursMinutesSecondsPower reserve indicatorWristwatch