It must also have a unidirectional rotating lunette, luminescence, etc.Ĭitizen watches are guaranteed for 5 years. For example, they are tested for decompression, corrosion resistance, resistance to magnetic fields (in this case, the mandatory value of 4800 A/m is exceeded to 16000 A/m) or impact. a watch tight to 200 m according to ISO 2281 is only tested to 200 m, a diver's watch according to ISO 6425 must be pressure tested to 250 m) and must meet other conditions. Such a watch must have a water resistance of at least 100 metres, and the watch must be pressure tested to 125% of the declared water resistance value (i.e. The watch meets the ISO 6425 diving standard, allowing it to wear the Diver's designation on the dial. Improved legibility in low-light conditions is ensured by luminescence applied to the indices and hands. ![]() Water resistance is supported by a screw-down crown and compliance with the ISO 6425 diving standard. The water resistance of the watch is 200 m, making it suitable for use in water, including swimming or diving. ![]() The clear dial of this model is protected by a sapphire crystal that is maximally scratch-resistant. A practical feature is the date display, which is located at the traditional 3 o'clock position. Thanks to the increased resistance of the movement to magnetic fields, this model has a resistance to magnetic fields of a very respectable 16000 A/m ( the resistance of a normal watch is around 4800 A/m) The movement also has a Parashock system (an invention of Citizen), which increases the resistance of the movement to shocks and shocks. stopping the seconds hand when the watch is regulated, and the option of manual winding by the crown. It can also make use of the "Hacking" function, i.e. This movement operates at a modern frequency of 28,800 semi-frequencies per hour (4Hz) and has 24 stone fits. Inside the case is the Citizen 9051 mechanical in-housemovement with automatic winding, which was first used by Citizen in 2021. Thanks to a special hardening method (in this case Duratect MRK), the surface of this titanium is more scratch-resistant than stainless steel. The Citizen NB6021-68L watch has a case and bracelet made of Super Titanium™, which guarantees low weight, high strength and complete anti-allergy. It serves excellently not only during dives but also during everyday wear. Excellent properties are also provided by the case and tension material Super Titanium™, a special titanium developed by Citizen. The watch impresses not only with its pure "diver" look, but also with features such as the mechanical movement with automatic winding. ![]() The Citizen Promaster Marine Super Titanium Automatic NB6021-68L is the ideal choice for both active athletes and everyday wear.
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