Rolex Oyster Perpetual Datejust II
Concept & History
The reference 116300 is the large-sized version of the Datejust line, which Rolex introduced in 2009 under the name Datejust II with a diameter of 41 mm. Unveiled at Baselworld 2009, this model marked the first time Rolex offered a Datejust in a case larger than the classic 36-mm size. In addition to the reference 116300, which is made entirely of stainless steel, the Rolesor versions 116333 and 116334 were also released within the series. Subsequently, the model series was replaced by the reference 126300, featuring the newly developed Caliber 3235.
Caliber & Technology
The Caliber 3136 is an automatic in-house caliber featuring a bidirectional rotor, a Glucydur balance wheel with Microstella adjustment screws, and a paramagnetic Parachrom hairspring, which is less sensitive to magnetic fields and temperature fluctuations than conventional steel hairsprings. The oscillation frequency is 28,800 half-vibrations per hour, and the power reserve is approximately 48 hours. Equipped with 31 jewels, the rotor system uses ruby bearings instead of ball bearings to ensure smooth winding. The movement is COSC-certified as an official chronometer; a Paraflex shock protection system protects the escapement from shocks.
Case & Material
The stainless steel Oyster case of reference 116300 measures 41 mm in diameter and is water-resistant to 100 meters - a level of water resistance that Rolex has ensured since the introduction of the Oyster construction in 1926 through a screw-down case back and screw-down crown (here: Triplock). The sapphire crystal features the integrated Cyclops lens. The smooth, polished-and-satin-finished bezel underscores the watch’s understated appearance. The five-link Oyster bracelet in stainless steel with an Oysterlock safety clasp offers a 5-mm fine adjustment that requires no tools.
Aesthetics & Readability
The sunburst dial in silver creates a nuanced surface effect depending on the angle of the light: The textured finish enlivens the surface without compromising readability. Applied hour markers made of 18-karat white gold and Dauphine hands with Chromalight luminescent material ensure clear readability under various lighting conditions. The Chromalight luminescent material emits a distinctive blue glow in the dark, which differs from older, greenish-glowing luminescent materials. The date appears at 3 o’clock under the Cyclops lens, which provides approximately 2.5x magnification.
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For more information, see Technical Details.
