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Model number 6263 stainless steel white dial Rolex Daytona. The original series, produced in small quantities from circa 1963 to the later 1980s, had a four-digit model or reference number, and had a manual wind movement. [12]
2540 (manual wind, sweep-second, 17 jewels, 21600vph, reserve 44h) 2550 (automatic, sweep-second, 17/21/23 jewels, 21600vph, reserve 42h)
The power reserve indicator is one of the most useful features of a mechanical watch besides the actual time display. A mechanical watch is operated by either automatic or manual winding. In order to run at a regular rate a mechanical timepiece needs to have at least 30 per cent of its mainspring wound.
The Rolex Oyster Perpetual Submariner is a line of sports watches designed for diving and manufactured by Rolex, resistant to water and corrosion. [1] The first Submariner was introduced to the public in 1954 at the Basel Watch Fair. [2] It was the first watch to be waterproof up to 100 metres (330 ft). [3]
Tourbillon movement (high resolution)In horology, a tourbillion (/ t ʊər ˈ b ɪ l j ən /) or tourbillon (/ t ʊər b ɪ ˈ j ɒ n /; French: [tuʁbijɔ̃] "whirlwind") is an addition to the mechanics of a watch escapement to increase accuracy.
The core of the keyless mechanism is a gear on the watch's winding stem, the clutch (or castle wheel in Britain), with two sets of axial gear teeth on it, which slides in and out. When the stem is pushed in, a lever slides the clutch out, and the outer set of teeth engages a small wheel train which turns the mainspring arbor, winding the ...