News 
In May 2021, Tudor launched its first timepiece to be Master Chronometer-certified by METAS, the Swiss Federal Institute of Metrology.
This distillation of technical expertise comes in the form of the Black Bay Ceramic model, embodying mastery of one of the highest standards in the industry in terms of chronometry and resistance to magnetic fields.
METAS Master Chronometer certification is comprehensive and covers the main functional characteristics of a watch including precision, resistance to magnetic fields, waterproofness and power reserve. Its standards are incredibly high, starting with precision. In order to qualify, a watch must be able to function within a 5-second range of variation each day (0 / +5), that is to say 5 seconds less than the Swiss Official Chronometer Testing Institute (COSC) (-4 / +6) carried out on a single movement and a second less than TUDOR’s internal standard, which is applied to the brand’s models with a Manufacture Calibre (-2 / +4). The certification also guarantees the timekeeping accuracy of a watch subjected to magnetic fields of 15,000 gauss.
Finally, it also guarantees that the waterproof capability claimed by the manufacturer conforms with the International Organization for Standardization (ISO) standard 22810:2010, as does the power reserve of each Master Chronometer watch. It should also be noted that two prerequisites are necessary before the certification can be obtained: Swiss manufacturing must conform with the criteria of Swiss Made, and the movement must be certified by the COSC.
This timepiece with its matt black monobloc ceramic case features a rotating bezel disc also in ceramic with tone-on-tone graduated scale. The dial in the same shade bears hour-markers filled with light beige luminescent material. Like the entire Black Bay line, the Ceramic model adopts the characteristically angular Tudor “Snowflakee” hands.
The all-black Manufacture Calibre MT5602-1U drives displays of the hours, minutes and seconds functions. Its build is designed to ensure robustness and precision, as is its variable inertia balance, which is maintained by a sturdy traversing bridge with a two-point fixing. Together with its non-magnetic silicon hairspring, it is able to function within a tolerance range of 5 seconds. Another notable feature is that the power reserve of this calibre is “weekend-proof”; that is to say, it has been certified for 70 hours by METAS, which enables the wearer to take the watch off on a Friday evening and put it back on again on Monday morning without having to wind it. Even if you need a weekend away, your watch does not.
Since its creation by Hans Wilsdorf in 1926, and in line with his vision of an ideal watchmaking product, Tudor continues to produce the most robust, durable, reliable and precise watches in existence today. Bolstered by this experience, and confident in the knowledge of the superior quality of its watches, the brand is offering a five-year guarantee on all its products sold after 1 January 2020.
June 17, 2021