REFERENCE
126603
MODEL CASE
Oyster, 43 mm, Oystersteel and yellow gold
BEZEL
Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in ceramic, numerals and graduations coated in gold
WATER-RESISTANCE
Waterproof to 1,220 metres / 4,000 feet, helium escape valve
MOVEMENT
Perpetual, mechanical, self-winding
CALIBRE
3235, Manufacture Rolex
POWER RESERVE
Approximately 70 hours
BRACELET
Oyster, flat three-piece links
DIAL
Black
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
43 mm
MATERIAL
Yellow Rolesor - combination of Oystersteel and yellow gold
WINDING CROWN
Screw-down, Triplock triple waterproofness system
CRYSTAL
Scratch-resistant sapphire, Cyclops lens over the date
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
BRACELET MATERIAL
Yellow Rolesor - combination of Oystersteel and yellow gold
CLASP
Folding Oysterlock safety clasp with Rolex Glidelock extension system
DETAILS
Highly legible Chromalight display with long-lasting blue luminescence


CERAMIC BEZEL AND LUMINESCENT DISPLAY
The 60-minute graduated, unidirectional rotatable bezel of the Sea-Dweller enables divers to precisely and safely monitor their dive and decompression times.
BLACK DIAL
The black dial of the Sea-Dweller has the large hands and indices reserved for Rolex professional models. The dial bears the name Sea-Dweller inscribed in a yellow hue, echoing the colour of the 18 ct yellow gold. When the Sea-Dweller was updated in 2017, this lettering was in red, in reference to the original model. The innovative Chromalight display on the dial pushes back the boundaries of visibility in dark environments. Its distinctive blue glow lasts up to eight hours with a uniform luminosity, practically twice as long as that of standard luminescent materials.


YELLOW ROLESOR
Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties. A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.

REFERENCE
126603
MODEL CASE
Oyster, 43 mm, Oystersteel and yellow gold
BEZEL
Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in ceramic, numerals and graduations coated in gold
WATER-RESISTANCE
Waterproof to 1,220 metres / 4,000 feet, helium escape valve
MOVEMENT
Perpetual, mechanical, self-winding
CALIBRE
3235, Manufacture Rolex
POWER RESERVE
Approximately 70 hours
BRACELET
Oyster, flat three-piece links
DIAL
Black
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
43 mm
MATERIAL
Yellow Rolesor - combination of Oystersteel and yellow gold
WINDING CROWN
Screw-down, Triplock triple waterproofness system
CRYSTAL
Scratch-resistant sapphire, Cyclops lens over the date
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
BRACELET MATERIAL
Yellow Rolesor - combination of Oystersteel and yellow gold
CLASP
Folding Oysterlock safety clasp with Rolex Glidelock extension system
DETAILS
Highly legible Chromalight display with long-lasting blue luminescence

CERAMIC BEZEL AND LUMINESCENT DISPLAY
The 60-minute graduated, unidirectional rotatable bezel of the Sea-Dweller enables divers to precisely and safely monitor their dive and decompression times.

BLACK DIAL
The black dial of the Sea-Dweller has the large hands and indices reserved for Rolex professional models. The dial bears the name Sea-Dweller inscribed in a yellow hue, echoing the colour of the 18 ct yellow gold. When the Sea-Dweller was updated in 2017, this lettering was in red, in reference to the original model. The innovative Chromalight display on the dial pushes back the boundaries of visibility in dark environments. Its distinctive blue glow lasts up to eight hours with a uniform luminosity, practically twice as long as that of standard luminescent materials.

YELLOW ROLESOR
Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties. A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.