Rolex, Datejust, "Diamond Sigma Dial", ca 1975.

Case size: 36 mm
Material: 18K gold
Movement: automatic, caliber 1570
Year: circa 1975
Crystal: plastic crystal
Bracelet: leather strap
Reference number: 1601
Serial number: 3'899'304
Movement number: D'649'962
Case number: 1601

Wear due to age and use.

A simple function check indicated the movement runs; accuracy, power reserve and long-term performance have not been tested and servicing may be required at the buyer’s expense. Water resistance cannot be guaranteed and should be checked by a qualified watchmaker before any exposure to water. No right of withdrawal applies to live auction purchases.

Muut tiedot

Introduced in 1945, the Rolex Datejust was the world’s first automatic wristwatch with an automatically changing date window at 3 o’clock. Over the decades, it has become one of Rolex’s most iconic models.

The present example is a Rolex Datejust reference 1601, produced in 1975, cased in solid 18K yellow gold. While the 1601 was most commonly manufactured in stainless steel or in steel and gold configurations, full gold examples are considerably rarer.

What further sets this watch apart is its diamond-set dial, adding a touch of luxury to the classic Datejust aesthetic. Noteworthy is the presence of the discreet “σ” (sigma) symbols at the bottom of the dial, flanking the “Swiss” designation. The sigma signature was introduced in the early 1970s by the Swiss watch industry to indicate the use of solid gold elements on the dial, in this case the applied hour markers.

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