Land-Dweller 40 mm 127334 – Luxus Uhr aus Oystersteel & Weißgold

Entirely developed and manufactured in-house, caliber 7135 operates at an exceptional 5 hertz, or 36,000 beats per hour, an unprecedented frequency for Rolex. This enables it to measure time to one tenth of a second. It also presents a particularly attractive design. Through the watch's transparent case back, the sparkle of the cut-out oscillating weight in yellow gold may be admired, as well as the delicate Rolex Côtes de Genève decoration on the bridges.

Caliber 7135's oscillator features a balance staff whose material and manufacture presented a significant challenge, a balance wheel made from optimized brass, and a silicon Syloxi hairspring. The patented balance staff is made from a new high-technology ceramic exclusive to Rolex and is shaped by laser – a first for the brand. Optimized Paraflex shock absorbers give the movement heightened shock resistance in any position. Finally, thanks to the various materials used to produce the oscillator's components, it is able to withstand strong magnetic fields.

Like all Rolex watches, the Oyster Perpetual Land-Dweller 40 and the Oyster Perpetual Land-Dweller 36 are covered by the Superlative Chronometer certification redefined by Rolex in 2015. This designation testifies that every watch leaving the brand’s workshops has successfully undergone a series of tests conducted by Rolex in its own laboratories according to its own criteria, following the official certification of the movements by the Swiss Official Chronometer Testing Institute (COSC). These in-house certification tests apply to the fully assembled watch, after casing the movement, guaranteeing superlative performance on the wrist in terms of precision, power reserve, waterproofness and self-winding. The precision of a Rolex Superlative Chronometer is of the order of −2/+2 seconds per day – the rate deviation tolerated by the brand for a finished watch is significantly smaller than that accepted by COSC for official certification of the movement alone.

The Superlative Chronometer status is symbolized by the green seal that comes with every Rolex watch and is coupled with an international five-year guarantee.