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Ref. 6263 Sigma with Rolex service
The oyster has actually delivered a big pearl and it lives in the Sigma dial of this sublim timepiece!
Serial: 3,78x,xxx (1974)
Dial: flawless with a pearl sundial giving a pronounced vintage look. All tritium plots are in place and hands have been serviced (they are NOS).
Case: very likely unpolished given how thick the lugs are. Satin finish all over.
Pushers: MK1 (the correct ones for the period)
Mouvement: Valjoux 727
Bracelet: oyster bracelet 78350/19, 557 B end links.
Box & Papers: Rolex green card guarantee from March 2018 service (2 year guarantee) and box.