Richard Mille RM 028 RM 028 BrandRichard Mille CollectionRM 028 ModelRM 028 ReferenceRM 028 Montre de Plongée Country of originSwitzerland Type of watchMen's Case materialTitanium Case diameter47 mm Case thickness14.6 mm Power reserve55 hours Water resistance300 m AutomaticHoursMinutesSecondsDateSecond time zone