REFERENCE
228345RBR

MODEL CASE
Oyster, 40 mm, Everose gold and diamonds

OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown

DIAMETER
40 mm

MATERIAL
18 ct Everose gold

BEZEL
Set with diamonds

WINDING CROWN
Screw-down, Twinlock double waterproofness system

CRYSTAL
Scratch-resistant sapphire, Cyclops lens over the date

WATER-RESISTANCE
Waterproof to 100 metres / 330 feet

MOVEMENT
Perpetual, mechanical, self-winding

CALIBRE
3255, Manufacture Rolex

PRECISION
-2/+2 sec/day, after casing

OSCILLATOR
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers

ESCAPEMENT
Chronergy with optimized energy efficiency

WINDING
Bidirectional self-winding via Perpetual rotor

POWER RESERVE
Approximately 70 hours

BRACELET
President, semi-circular three-piece links

BRACELET MATERIAL
18 ct Everose gold

CLASP
Concealed folding Crownclasp

DIAL
Eisenkiesel set with diamonds

GEM SETTING
10 baguette-cut diamonds

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

DAY-DATE 40 m228345rbr-0016
Eisenkiesel dial

Eisenkiesel dial

This dial features 10 baguette-cut diamonds. The Oyster Perpetual Day-Date 40 is presented with a dial made from eisenkiesel, a deep brown decorative stone used by the brand for the first time in 2021. Eisenkiesel is an iron-oxide, delicately veined quartz. The stone discs destined for the dials are cut from a block of raw material. Only those whose colour and structure fully satisfy the brand’s exacting aesthetic requirements are selected. They will grace the dial of a Rolex watch, conferring it with a unique personality.

Diamond-Set Bezel

Gem-setters, like sculptors, finely carve the precious metal to hand-shape the seat in which each gemstone will be perfectly lodged. With the art and craft of a jeweller, the stone is placed and meticulously aligned with the others, then firmly secured in its gold or platinum setting. Besides the intrinsic quality of the stones, several other criteria contribute to the beauty of Rolex gem-setting: the precise alignment of the height of the gems, their orientation and position, the regularity, strength and proportions of the setting as well as the intricate finishing of the metalwork. A sparkling symphony to enhance the watch and enchant the wearer.

Diamond-Set Bezel
18 ct Everose gold

18 ct Everose gold

To preserve the beauty of its pink gold watches, Rolex created and patented an exclusive 18 ct pink gold alloy cast in its own foundry: Everose gold. Introduced in 2005, 18 ct Everose is used on all Rolex Oyster models in pink gold.

DAY-DATE 40 m228345rbr-0016

REFERENCE
228345RBR

MODEL CASE
Oyster, 40 mm, Everose gold and diamonds

OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown

DIAMETER
40 mm

MATERIAL
18 ct Everose gold

BEZEL
Set with diamonds

WINDING CROWN
Screw-down, Twinlock double waterproofness system

CRYSTAL
Scratch-resistant sapphire, Cyclops lens over the date

WATER-RESISTANCE
Waterproof to 100 metres / 330 feet

MOVEMENT
Perpetual, mechanical, self-winding

CALIBRE
3255, Manufacture Rolex

PRECISION
-2/+2 sec/day, after casing

OSCILLATOR
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers

ESCAPEMENT
Chronergy with optimized energy efficiency

WINDING
Bidirectional self-winding via Perpetual rotor

POWER RESERVE
Approximately 70 hours

BRACELET
President, semi-circular three-piece links

BRACELET MATERIAL
18 ct Everose gold

CLASP
Concealed folding Crownclasp

DIAL
Eisenkiesel set with diamonds

GEM SETTING
10 baguette-cut diamonds

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

Eisenkiesel dial

Eisenkiesel dial

This dial features 10 baguette-cut diamonds. The Oyster Perpetual Day-Date 40 is presented with a dial made from eisenkiesel, a deep brown decorative stone used by the brand for the first time in 2021. Eisenkiesel is an iron-oxide, delicately veined quartz. The stone discs destined for the dials are cut from a block of raw material. Only those whose colour and structure fully satisfy the brand’s exacting aesthetic requirements are selected. They will grace the dial of a Rolex watch, conferring it with a unique personality.

Diamond-Set Bezel

Diamond-Set Bezel

Gem-setters, like sculptors, finely carve the precious metal to hand-shape the seat in which each gemstone will be perfectly lodged. With the art and craft of a jeweller, the stone is placed and meticulously aligned with the others, then firmly secured in its gold or platinum setting. Besides the intrinsic quality of the stones, several other criteria contribute to the beauty of Rolex gem-setting: the precise alignment of the height of the gems, their orientation and position, the regularity, strength and proportions of the setting as well as the intricate finishing of the metalwork. A sparkling symphony to enhance the watch and enchant the wearer.

18 ct Everose gold

18 ct Everose gold

To preserve the beauty of its pink gold watches, Rolex created and patented an exclusive 18 ct pink gold alloy cast in its own foundry: Everose gold. Introduced in 2005, 18 ct Everose is used on all Rolex Oyster models in pink gold.