Category: Audemars Piguet Royal Oak Offshore (Used). Case size: 44.0 mm. Exterior features: See-through back. The belt size is the size of the total arm circumference including the casepart. If there is a notation for dimensions, please note that some errors are dueto amateur measurement. I think that the picture is different depending on the screen of thecomputer. Please do not return because the color is not the same as the one in theimage. For customers living in the USA. International Buyers – Please Note. We won’t under-value merchandise or mark the item as a gift on customsforms. Doing that is against U. Please note that we may not be able to meet your request.