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technical details · reference 228238.
Model case
Model case – Oyster, 40 mm, yellow gold
Oyster architecture – Monobloc middle case, screw-down case back and winding crown
Diameter – 40 mm
Material – 18 ct yellow gold
Bezel – Fluted
Water resistance – Waterproof to 100 metres / 330 feet
Movement
Movement – Perpetual, mechanical, self-winding
Calibre – 3255, Manufacture Rolex
Precision – −2/+2 sec/day, after casing
Functions – Centre hour, minute and seconds hands. Instantaneous day and date in apertures, rapid-setting. Stop-seconds for exact time setting
Winding – Bidirectional self-winding via Perpetual rotor
Power reserve – Approximately 70 hours
Bracelet
Bracelet – President, semi-circular three-piece links
Material – 18 ct yellow gold
Clasp – Concealed folding Crownclasp
Dial
Dial – Champagne-colour set with diamonds
Gem settings – 10 baguette-cut diamonds
Certification
Certification – Superlative Chronometer (COSC + Rolex certification after casing)