Rolex "Double Red" Sea-Dweller Ref. 1665 in Steel

CIRCA: 1977
REF.: 1665
CASE NUMBER: 5057422
CASE MATERIAL: Stainless steel
CASE DIMENSIONS: 40 mm diameter
DIAL: Mark 4 black matte dial with tritium luminous markers, date at 3 o'clock
BRACELET MATERIAL: Rolex stainless steel bracelet, ref. 9315 with 380 end links
BRACELET SIZE: 7 inches
MOVEMENT: Automatic
FUNCTIONS: Time, date
CALIBER: 1570

The Rolex Sea-Dweller is less well-known than its Submariner sibling, but the beefier case plays an important role in horology, specifically in deep sea diving. The inclusion of a thicker case and domed crystal, as well as the patented helium escape valve, enable the Sea-Dweller to reach depths of up to three times that of the Submariner. This example has a beautifully aged Mark 4 dial with the original tritium hour markers and hands developing a beautiful cream-colored patina.

Property of a New York Collector