Movement: automatic Rolex caliber 1570 with date function
Dial: original black with applied gold indexes and rare “Sigma” signature
Crystal: plexiglass with Cyclops lens
Bracelet: original 18kt yellow gold Oyster with period-correct clasp
Reference: 1503
Year of production: 1966
Condition: excellent, completely original and well preserved
Key Features
Black “Sigma” dial — a rare and highly sought-after detail indicating the use of gold for indexes and hands
Original 18kt yellow gold Oyster bracelet, uncommon for reference 1503
Automatic caliber 1570, one of Rolex’s most reliable and enduring movements
Elegant design and perfect proportions, emblematic of Rolex’s 1960s balance and style
Historical Context
The Rolex Date ref. 1503 is one of the most refined versions of the Oyster Perpetual line. Crafted entirely in 18kt yellow gold, it combines elegance and versatility. This 1966 example, featuring the rare black “Sigma” dial and its original gold Oyster bracelet, represents a highly desirable and uncommon combination for collectors of authentic vintage Rolex watches.
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