Rolex
Explorer II
Ref. 16550
The Rolex Explorer II reference 16550 is a notable transitional model introduced in the 1980s, marking the shift from the earlier 1655. It is celebrated for introducing a white 'Polar' dial option, a modern sapphire crystal, and the Caliber 3085 movement, which allowed independent adjustment of the 24-hour hand. Its 40mm stainless steel case and tool-watch design make it a collectible piece in Rolex's Professional Series.
crystalSapphire
braceletStainless steel Oyster bracelet
movementAutomatic Caliber 3085, 42-hour power reserve, hacking seconds, quickset date
functionsDate, GMT (independent 24-hour hand)
case diameter40
case materialStainless steel
year1980s
A registered Rolex 16550 carries a permanent RGATT passport: origin, history and owners, verifiable by anyone, and a documented history makes a watch easier to sell.