ROLEX - a bi-metal Oyster Perpetual Datejust wrist watch, 36mm., , ROLEX - an Oyster Perpetual Datejust wrist watch. Circa 1973. Stainless steel case with yellow metal fluted bezel. Case width 36mm. Reference 1601, serial 3581715. Signed automatic calibre 1570. Champagne dial with baton hour markers, date aperture to three. Fitted to an unsigned brown leather strap with gold plated pin buckle. , , Please note: When placing absentee bids, your bids will be rounded up to the nearest bid increment. For more information click the 'Important Notices for Purchasers' button above.