ROLEX Oyster Perpetual DATEJUST II Ref 116300 – 72210 : New Model in 904L Stainless Steel

ROLEX enhances its Oyster Perpetual DATEJUST II line with a new version that is entirely in steel with a smooth bezel. This new, imposing and dynamic model joins the ROLESOR version – in steel and gold – launched in 2009. The DATEJUST II continues the tradition of the DATEJUST, the emblematic model created by Rolex in 1945, the first self-winding waterproof wristwatch chronometer to display the date in a window on the dial.

The DATEJUST II’s 41 mm OYSTER case, guaranteed waterproof to a depth of 100 metres (330 feet), is a paragon of robustness. The characteristically shaped middle case is crafted from a solid block of particularly corrosion-resistant 904L steel. The fluted case back is hermetically screwed down with a special tool exclusive to Rolex watchmakers. The winding crown, fitted with the patented TWINLOCK double waterproofness system, screws down securely against the case. The crystal, with a CYCLOPS lens at 3 o’clock for easy reading of the date, is made of virtually scratchproof synthetic sapphire. The waterproof OYSTER case allies refinement with efficiency in protecting the DATEJUST II’s high-precision movement.

The DATEJUST II is equipped with calibre 3136, a self-winding mechanical movement entirely developed and manufactured by Rolex. Like all PERPETUAL movements, the 3136 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, like that of all OYSTER watch movements, makes it singularly precise and reliable. The oscillator, the true heart of the watch, has a blue PARACHROM hairspring patented and manufactured by Rolex in an exclusive alloy. Insensitive to magnetic fields, the PARACHROM hairspring offers great stability when exposed to temperature variations and remains up to 10 times more precise than a traditional hairspring in case of shocks. The oscillator is fitted between high-performance PARAFLEX shock absorbers, patented by Rolex, which offer 50 per cent greater resistance to shocks.

This DATEJUST II model is fitted with a 904L steel OYSTER bracelet with a folding OYSTERCLASP. Developed and patented by Rolex, this elegant solid-link bracelet offers remarkable comfort and ease of use. It also features the ingenious EASYLINK rapid extension system that allows the wearer to easily increase the bracelet length by approximately 5 mm, for additional comfort in any circumstance.

Technical details
Model: Oyster Perpetual DATEJUST II Ref 116300 – 72210
REFERENCE (CASE – BRACELET): 116300 – 72210

CASE
Type: OYSTER (monobloc middle case, screw-down case back and winding crown)
Diameter: 41 mm
Material: 904L stainless steel superalloy, polished finish
Case back: Screw-down with Rolex fluting
Bezel: Smooth
Winding crown: Screw-down, TWINLOCK double waterproofness system
Crystal: Scratch-resistant synthetic sapphire CYCLOPS lens (2.5 ×) over the date, double anti-reflective coating
Waterproofness: 100 metres (330 feet)

MOVEMENT
Calibre 3136, Manufacture Rolex
Mechanical movement with bidirectional self-winding via PERPETUAL rotor
Precision: Officially certified Swiss chronometer (COSC)

Functions
Centre hour, minute and seconds hands
Instantaneous date at 3 o’clock with rapid setting
Stop-seconds for precise time setting

Oscillator
Frequency: 28,800 beats/hour (4 Hz)
Paramagnetic blue PARACHROM hairspring
Breguet overcoil
Large balance wheel with variable inertia
High-precision regulating via four gold MICROSTELLA nuts
Traversing balance bridge
High-performance PARAFLEX shock absorbers
Jewelling :31 rubies
Power reserve: Approximately 48 hours

DIAL
Colour: Silver, sunray finish
Hour markers: 18 ct white gold appliques with phosphorescent material
Hands: 18 ct white gold with phosphorescent material

BRACELET
Type: OYSTER, three-piece solid links
Material: 904L stainless steel superalloy, polished centre links, satin-finished outer links with polished edges
Clasp: Folding OYSTERCLASP, EASYLINK 5 mm comfort extension link

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