ROLEX. A STAINLESS STEEL AUTOMATIC CALENDAR BRACELET WATCH Model: Sea-Dweller 'Great White' Reference: 1665 Date: c. 1977 Movement: Cal. 1570, 26-jewel automatic, no. D52T183 Dial: Black Case: Tonneau form, screw down case back, no. 5398916 Strap/Bracelet: Stainless steel Oyster link with folding clasp Signed: Case, dial, movement, bracelet and clasp Size: 40mm Accompaniments: None Footnotes: Reference 1665 represents a significant chapter in the development of Rolex's professional diving watches. Introduced in the late 1970s, the 'Great White' followed the earlier 'Double Red Sea-Dweller' and retained the model's helium escape valve, developed for saturation diving. The present example, dating to circa 1977, features a Mark 1 dial, distinguished by its distinctive typography, straight 'ft' and open '6' in the depth rating. Together with its early production date, these details place the watch among the earliest examples of the 'Great White' generation. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing