Rolex Submariner Prototype 18k White Gold Automatic (1977)

Case is 40mm diam., 18k white gold. Dial is black ‘nipple’. Movement is automatic with sweep centre seconds and date. With: 18k white gold Rolex President bracelet, overall length approximately 170 mm. Remark: One of only three known 18k white gold Submariner prototypes, circa 1977. Estimate CHF 450,000 – CHF 650,000. Sold for CHF 635,000 at Christies Auction 12 May 2026 Geneva