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Rolex Day-Date 40 mm

Rolex Day-Date 40 mm

AutomaticYellow Gold

Ref. 228348RBR-0003

Collection: Day-DateCase size: 40mmMovement: 3255

The Rolex Day-Date 40, reference 228348RBR-0003, is cased in 18 ct yellow gold at 40 mm across and 12 mm thick. The bezel is diamond-set, giving the case its sparkle over the champagne-colour dial. A Cyclops lens sits over the date on the scratch-resistant sapphire crystal. Inside is the calibre 3255, a self-winding movement certified as a Superlative Chronometer with a power reserve of approximately 70 hours. The dial shows the day and date along with central seconds, and the crown is a screw-down design. The watch is fitted to a President bracelet in yellow gold with a concealed folding Crownclasp. Rolex rates the case to 100 metres of water resistance.

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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

Champagne

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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