THE CASEBACK IS FULLY threaded: underneath it is Calibre 3132. Rate results: Deviations in seconds per 24 hoursĭiameter = 39 mm, height = 11 mm, weight = 131 g Movement: Self-winding manufacture Calibre 3132, chronometer, 28,800 vph, 31 jewels, stop-seconds function, Paraflex shock absorption, Parachrom balance spring with Breguet terminal curve, Glucydur balance with Microstella nuts for fine adjustment, 48-hour power reserve, diameter = 28.5 mm, height = 5.37 mmĬase: 904L stainless steel flat, but not nonreflective, sapphire crystal threaded Twinlock crown fully threaded 904L stainless-steel back water resistant to 100 mīracelet and clasp: 904L stainless-steel Oyster bracelet with folding Oysterclasp Manufacturer: Rolex SA, Rue FrançoisDussaud 3–7, CH-1211 Geneva, Switzerland Reference number: 114300 With a water-resistance rating of 100 metres, the Oyster Perpetual 39 is impermeable enough for a sportily elegant watch and is well suited for daily use. The horizontal bar under Rolex’s crown-shaped logo on the winding button stands for the Twinlock crown.
This model also provides a convenient stopseconds function that halts the balance, and thus also the hands, to facilitate tothe-second time setting.
The crown, which unscrews easily, has only two extracted positions: one to wind the mainspring and another to set the hands. Due to the lack of a date display, operating the Oyster Perpetual 39 is refreshingly simple. If you’re one of them, Rolex offers the Datejust in 36-mm and 41-mm versions, each with a magnifying lens above the date display, and each at a significantly higher price. Its absence assures a tidy-looking dial, but might dissuade some from buying this model. Luminous material on the hands and on the indexes at 3, 6 and 9 facilitates orientation in the dark. The crystal has no nonreflective coating and therefore legibility is not always ideal. Proofs of authenticity include Rolex’s crown-shaped logo lasered into the sapphire crystal at 6 o’clock, the name “Rolex” engraved into the metal ring around the dial, Rolex’s crown logo as an appliqué at the 12, and the serial number at 6. As is almost always the situation on a Rolex wristwatch, the flat sapphire crystal rises above the level of the case, but slopes diagonally downward along its periphery to deflect potential shocks. All surfaces (except the upper planes of the lugs) are polished. With gently curving lugs and a broad bezel, the case makes a harmonious impression. Little blue blocks adjacent to the hour indexes add a touch of excitement and combine with the anthracite-coloured and sunburstfinished dial to create an attractive colour combination that looks modern, elegant and special. The popular Datejust was the god- father for the shapes of the hands, the indexes and the case.
"This model also provides a convenient stopseconds function that halts the balance, and thus also the hands, to facilitate tothe-second time setting."
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