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The Rolex Oyster Perpetual Ref. 1500 is already one of the most versatile and understated vintage Rolex models, but this 1972 example rises far above the rest thanks to its exceptionally rare blue radial Sigma dial. Collectors prize these dials for their unique layout, deep metallic tones and the Sigma symbols at 6, which denote solid gold hands and markers — a discreet sign of elevated quality during the early 1970s.
The sunburst finish on this dial is particularly striking, shifting beautifully from electric blue to slate depending on the light. The radial minute track gives the watch a dynamic, almost contemporary presence, making this one of the most desirable configurations of the 1500 reference.
This example is powered by the Rolex 1575 calibre, a reliable, chronometer-level automatic movement known for its durability and accuracy. It is paired with its period-correct 7835 folded link Oyster bracelet, also dated to 1972, which completes the watch with total authenticity.
For collectors seeking a rare expression of an already iconic reference, this is an exceptional opportunity.
Key Features
Reference 1500
Year 1972
Very rare blue sunburst radial Sigma dial
Sigma signatures at 6 indicating solid gold markers and hands
Rolex automatic calibre 1575 movement
34mm steel case
Acrylic crystal
Period-correct 7835 folded Oyster bracelet stamped 1972
A Word on Condition
This watch remains in excellent vintage condition throughout. The blue radial Sigma dial is the clear highlight — vibrant, clean and beautifully preserved, with its sunburst effect still rich and full of depth. The hands and markers retain their correct Sigma-specified gold components.
The case shows honest signs of age but retains good edge definition. The bracelet is strong for its age and remains tight for a folded link reference. The acrylic crystal is clean with only light signs of wear consistent with vintage use.
As with all our watches, it has been fully inspected to meet our exacting standards.
Why Buy This Watch
Very rare and highly collectible blue radial Sigma dial
A standout variation of the OP 1500 that is seldom seen in the market
Period-correct bracelet and excellent originality
Beautiful colour, excellent dial condition and a reliable 1575 movement
A superb entry point into rare-dial vintage Rolex collecting
Understated to the untrained eye, yet unquestionably special to those who know
This is a striking and uncommon Rolex Oyster Perpetual that offers genuine collectability, elegant aesthetics and enduring everyday wearability.
Every watch we sell is fully inspected and professionally serviced to meet our exacting standards. All purchases include bespoke Watts On Watches packaging, full purchase documentation and a 12-month WOW warranty.