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Rolex Day-Date 40 mm

Rolex Day-Date 40 mm

AutomaticYellow Gold

Ref. 228348RBR-0007

Collection: Day-DateCase size: 40mmMovement: 3255

This Rolex Day-Date 40 mm, reference 228348RBR-0007, is cased in 18 ct yellow gold with a diameter of 40 mm and a thickness of 12 mm. The bezel is diamond-set, and the silver dial sits under a scratch-resistant sapphire crystal with a Cyclops lens over the date. Inside is the calibre 3255, a perpetual, self-winding movement with a power reserve of approximately 70 hours, and Rolex certifies the watch as a Superlative Chronometer. The dial shows the day and date along with central seconds. This is a men's watch set with diamonds, paired with a President bracelet in yellow gold and closed by a concealed folding Crownclasp. The screw-down crown, with its Twinlock double waterproofness system, holds the case to a 100 metre rating.

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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

Silver

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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