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ROLEX OYSTER PERPETUAL DATEJUST 31MM
Marque: Rolex
Modèle: Datejust
Référence: 278240-0004
Chiffres du cadran: Romaine
Type de fermoir: Pliante
Résistance à l’eau: 100
Couleur du bracelet: Grise
Genre: femmes
Réserve de marche: 55 Heures
Verre: Anti-reflective and scratch-resistant Saphir crystal
Diamètre du boîtier: 31 mm
Calibre: 2236
Cadran: Blanche
Mouvement: Self-winding
Matériau du boîtier: Acier inoxydable
Matériau du fermoir: Acier inoxydable
Matériau de la lunette: Acier inoxydable
Matériau du bracelet: Acier inoxydable
Heures, Minutes, Secondes, date, chronometer.
Case:
Diameter: 31 mm.
Oystersteel.
Domed bezel.
Monobloc middle case.
Screw-down case back and winding crown.
Twinlock double waterproofness system.
Waterproof to 100 metres / 330 feet.
Dial:
White lacquered with Roman numerals.
Cyclops lens over the date.
Scratch-resistant sapphire crystal.
Movement:
Perpetual, mechanical, self-winding.
Calibre 2236, Manufacture Rolex.
Precision of -2/+2 sec/day, after casing.
Syloxi hairspring in silicon with patented geometry.
High-performance paraflex shock absorbers.
Bidirectional self-winding via perpetual rotor.
Superlative chronometer (COSC + Rolex certification after casing).
Power reserve of 55 hours.
31 jewels.
Frequency: 28,800 vibrations per hour.
Bracelet:
Oystersteel.
Jubilee, five-piece links.
Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link.
