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  2. Automatic quartz - Wikipedia

    en.wikipedia.org/wiki/Automatic_quartz

    'Seiko Quartz Automatic Generating System' (A.G.S. = early Kinetic), Perpetuum Nobile (produced in 1989), Cal. 7M45, No. 246 of 700 Seiko AGS SCUBA Diver 200m 5M23-6A60, 1993. Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism [1] (as used in automatic mechanical watches) to generate ...

  3. Diving watch - Wikipedia

    en.wikipedia.org/wiki/Diving_watch

    A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 1.1 MPa (11 atm), the equivalent of 100 m (330 ft). The typical diver's watch will have a water resistance of around 200 to 300 m (660 to 980 ft), though modern technology ...

  4. Seiko - Wikipedia

    en.wikipedia.org/wiki/Seiko

    In 1968, Seiko introduced three ten beat (ten ticks per second) calibers, the automatic caliber 61GS, the manual winding 45GS [46] and 19GS [47] for women's watch. The 61GS was Japan's first automatic ten beat watch, and it was the most accurate mechanical watch due to the high beat calibers. [ 48 ]

  5. Spring Drive - Wikipedia

    en.wikipedia.org/wiki/Spring_Drive

    The Spring Drive uses a conventional mainspring [3] and barrel [4] along with automatic and/or stem winding to store energy, just as in a mechanical watch. [3] However, the escapement and balance wheel in mechanical watches is replaced by Seiko's Tri-synchro Regulator system, a phase-locked loop wherein a rotor, which Seiko refers to as a "glide wheel", is powered by the mainspring barrel via ...

  6. Ruputer - Wikipedia

    en.wikipedia.org/wiki/Ruputer

    The Ruputer is a wristwatch computer developed in 1998 by Seiko Instruments, a subsidiary of the Seiko Group. It was introduced on 10 June 1998. [1] In the US, it was later marketed as the onHand PC by Matsucom. The Ruputer has a 16-bit, 3.6 MHz processor and 2 MB of non-volatile storage memory and 128 KB of RAM.

  7. Dive computer - Wikipedia

    en.wikipedia.org/wiki/Dive_computer

    A dive computer, personal decompression computer or decompression meter is a device used by an underwater diver to measure the elapsed time and depth during a dive and use this data to calculate and display an ascent profile which, according to the programmed decompression algorithm, will give a low risk of decompression sickness.

  8. Omega Seamaster - Wikipedia

    en.wikipedia.org/wiki/Omega_Seamaster

    The Omega Seamaster is a line of automatic winding mechanical diving watches from Omega with a history that can be traced back to the original water-resistant dress-style watch released in 1948. The Seamaster collection is perhaps best known today for the Seamaster Diver Professional 300m model that has been worn in the James Bond movie ...

  9. Deep diving - Wikipedia

    en.wikipedia.org/wiki/Deep_diving

    Deepest scuba dive on compressed air (July 1999 in Puerto Galera, Philippines). [20] 200 m (660 ft) Limit for surface light penetration sufficient for plant growth in clear water, though some visibility may be possible farther down. [nb 3] 230 m (750 ft) First dive on a hydrox-rebreather (14 February 2023 in the Pearse Resurgence, New Zealand ...