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Rolex Day-Date 40 mm

Rolex Day-Date 40 mm

AutomaticYellow Gold

Ref. 228348RBR-0040

Collection: Day-DateCase size: 40mmMovement: 3255

Rolex Day-Date 40, reference 228348RBR-0040, cased in 18 ct yellow gold at 40 mm across and 12 mm thick. The bezel is diamond-set, and a Cyclops lens sits over the date on the sapphire crystal. The green dial is fitted to the self-winding calibre 3255, a Superlative Chronometer with roughly 70 hours of power reserve. Weekday and date appear in apertures, shown alongside a central seconds hand, and the crown screws down against the case. This is a gold watch dressed with gemstones, set with diamonds on the bezel. It is fitted to a President bracelet in matching yellow gold, closed with a concealed folding Crownclasp. The case is waterproof to 100 metres.

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Last updated 4 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

40mm

Thickness

12mm

Case Material

Yellow Gold

Water Resistance

100m

Crystal

Sapphire Crystal

Bezel Material

Gem-set

MOVEMENT

Movement Type

Automatic

Caliber

3255

Power Reserve

72h

Frequency

28,800 vph (4 Hz)

Jewels

31 jewels

DIAL

Dial Color

Green

Numerals

Roman Numerals

BRACELET/STRAP

Bracelet/Strap

Yellow Gold

Clasp Type

Hidden Fold Clasp

Clasp Material

Yellow Gold

FEATURES & COMPLICATIONS

Central secondsChronometerDateGemstones and/or diamondsQuick SetScrew-Down CrownWeekday

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