MasterHorologer

Rolex Oyster Perpetual Explorer 36mm Yellow Rolesor (Reference 124273-0001)

This year, Rolex presents a new Oyster Perpetual Explorer watch in a yellow Rolesor version. With a 36 mm diameter case, it returns to the size of the original model launched in 1953.

Rolesor, the combination of 18 ct gold and Oystersteel on a Rolex watch, has been a signature feature of the brand since 1933, when the name was registered. On the yellow Rolesor version of the new-generation Explorer, the bezel, winding crown and centre links of the bracelet are in 18 ct yellow gold, while the case and outer links of the bracelet are in Oystersteel.

The new-generation Explorer’s 36 mm Oyster case is guaranteed waterproof to a depth of 100 metres (330 feet). Its middle case is crafted from a solid block of Oystersteel, a particularly corrosion-resistant alloy. The case back, edged with fine fluting, is hermetically screwed down with a special tool that allows only Rolex watchmakers to access the movement.

The Twinlock winding crown, fitted with a double waterproofness system, screws down securely against the case. The crystal is made of virtually scratchproof sapphire. The waterproof Oyster case provides optimum protection for the watch’s movement.

The new-generation Explorer is equipped with calibre 3230, a movement entirely developed and manufactured by Rolex that was released in 2020. This state-of-the-art self-winding mechanical movement led to the filing of several patents, and offers outstanding performance in terms of precision, power reserve, resistance to shocks and magnetic fields, convenience and reliability.

Calibre 3230 incorporates the Chronergy escapement patented by Rolex, which combines high energy efficiency with great dependability. Made of nickel-phosphorus, it is also insensitive to magnetic fields. The movement is fitted with an optimized blue Parachrom hairspring, manufactured by Rolex in a paramagnetic alloy that makes it up to 10 times more precise than a traditional hairspring in case of shocks.

The blue Parachrom hairspring is equipped with a Rolex overcoil, ensuring the calibre’s regularity in any position. The oscillator is fitted on the Rolex-designed and -patented high-performance Paraflex shock absorbers, increasing the movement’s shock resistance.

Calibre 3230 is equipped with a self-winding module via a Perpetual rotor. Thanks to its barrel architecture and the escapement’s superior efficiency, the power reserve of calibre 3230 extends to approximately 70 hours.

The new-generation Explorer is fitted with an Oyster bracelet. Developed at the end of the 1930s, this three-piece link bracelet is known for its robustness.

The Oyster bracelet on this new watch features the Rolex-designed and -patented Oysterlock folding safety clasp, which prevents accidental opening. It is also equipped with the Easylink comfort extension link, developed by the brand, which allows the wearer to easily adjust the bracelet length by approximately 5 mm. In addition, a concealed attachment system ensures seamless visual continuity between the bracelet and case.

Like all Rolex watches, the Oyster Perpetual Explorer is covered by the Superlative Chronometer certification redefined by Rolex in 2015.

Technical details

Model: Oyster Perpetual Explorer 36mm Yellow Rolesor
Reference 124273

Case reference: 124273
Bracelet reference: 78GA03

Case
Oyster (monobloc middle case, screw-down case back and winding crown)
Diameter: 36 mm
Material: Oystersteel and 18 ct yellow gold (yellow Rolesor)
Middle case: Oystersteel, satin finish with polished sides
Bezel: 18 ct yellow gold, smooth
Case back: Oystersteel, solid, screw-down with fine fluting
Winding crown: Twinlock in 18 ct yellow gold, screw-down, double waterproofness system
Crystal: Scratch-resistant sapphire with anti-reflective coating
Waterproofness: 100 metres (330 feet)

Movement
Calibre 3230, Manufacture Rolex
Mechanical movement with bidirectional self-winding via Perpetual rotor
Precision: −2 /+2 sec/day, after casing

Functions
• Centre hour, minute and seconds hands
• Stop-seconds for exact time setting

Oscillator
• Frequency: 28,800 beats/hour (4 Hz)
• Paramagnetic blue Parachrom hairspring
• Rolex overcoil
• Large balance wheel with variable inertia
• High-precision regulating via four gold

Microstella nuts
• Traversing balance bridge
• High-performance Paraflex shock absorbers

Escapement
• Chronergy with optimized energy efficiency
• Paramagnetic nickel-phosphorus pallet fork and escape wheel

Jewelling
• 31 rubies

Power reserve
• Approximately 70 hours

Dial
• Black lacquer
• Hour markers and 3, 6 and 9 numerals in 18 ct yellow gold, highly legible Chromalight (long-lasting luminescence, blue glow)
• Hands in 18 ct yellow gold, highly legible Chromalight (long-lasting luminescence, blue glow)

Bracelet
• Oyster, three-piece solid links
• Polished centre links in 18 ct yellow gold, satin-finished outer links in Oystersteel with polished edges (yellow Rolesor)
• Oysterlock folding safety clasp
• Easylink comfort extension link (approx. 5 mm)

Certification
Superlative Chronometer (COSC + Rolex certification after casing)
International five-year guarantee

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