
Ref. 278381RBR-0027
Rolex Datejust 31 mm, reference 278381RBR-0027, cased in steel and gold at 31 mm across. The bezel is diamond-set, and the chocolate dial is also set with diamonds in 18 ct gold settings. A sapphire crystal with a Cyclops lens sits over the date. Inside is the self-winding calibre 2236, a Rolex manufacture movement with a Syloxi hairspring and around 55 hours of power reserve, certified as a Superlative Chronometer. The screw-down crown uses the Twinlock double waterproofness system. A steel and gold Oyster bracelet closes with a folding Oysterclasp fitted with the Easylink comfort extension link. The crown and case together hold their rating to 100 metres.
TECHNICAL SPECIFICATIONS
GENERAL
Gender
Women
CASE
Diameter
31mm
Case Material
Gold/Steel
Water Resistance
100m
Crystal
Sapphire Crystal
Bezel Material
Gem-set
MOVEMENT
Movement Type
Automatic
Caliber
2236
Power Reserve
55h
Frequency
28,800 vph
Jewels
55 jewels
DIAL
Dial Color
Brown
Numerals
Gemstones
BRACELET/STRAP
Bracelet/Strap
Gold/Steel
Clasp Type
Fold Clasp
Clasp Material
Gold/Steel
