The Essence of Black Bay
Like other models in the Black Bay family, the Black Bay GMT features a dial inspired by the TUDOR divers’ watches of the 1950s. It adopts the characteristic angular hands known to collectors as snowflake, that appeared in the brand’s 1969 catalogue. Finally, the large winding crown, characteristic of the first generation of TUDOR divers’ watches to be waterproof to 200 metres (660 ft), is also presented in this new model.
A 24-Hour Rotatable Bezel
The Black Bay GMT features a matt burgundy and blue bezel, colours commonly found within the Black Bay family. The bidirectional rotatable bezel is calibrated for 24 hours: the twelve daylight hours are printed on the burgundy section and the night-time hours on the blue. Additional time zones are indicated by a red Snowflake hand, which spins around the dial in 24 hours.
The Manufacture Calibre MT5652
The manufacture calibre MT5652 was designed by TUDOR specifically for the Black Bay GMT model, introducing a new function to the line of TUDOR manufacture calibres.
The Calibre MT5652 has the appearance and finish typical of TUDOR manufacture calibres. Its openwork rotor is satin-brushed with sand-blasted details and its bridges and mainplate have alternate polished sand-blasted surfaces and laser decorations. Its structure was designed to ensure robustness, longevity and reliability, as has its variable inertia balance, which is maintained by a sturdy traversing bridge with a two-point fixation. Featuring a 70-hour power reserve, the manufacture calibre MT5652 is certified as a chronometer by the Swiss Official Chronometer Testing Institute (COSC).
A steel bracelet,
a brown leather strap,
or a fabric strap
The Black Bay GMT comes with a choice of a riveted steel bracelet with polished and satin finish, a “Terra di Siena” brown leather strap with folding clasp and safety catch, or a black fabric strap with a burgundy band. Made using the Jacquard technique, a traditional method achieved by a hundred-year-old family business from the St-Etienne region of France, the fabric strap is one of TUDOR’s signature features.
Designed to withstand the elements
The Black Bay GMT features a 41 mm satin-brushed steel case, waterproof to 200 metres (660 ft). Luminescent hour markers set against the black dial ensure legibility at night-time -- and in all conditions. The dial features a GMT mention at 6 o’clock.
The history of the TUDOR divers’ watch dates back to 1954 and the launch of reference 7922. The first in a long line of ergonomic, legible, accurate and robust divers’ watches, it perfectly embodies the approach formulated by the American architect Louis Sullivan, according to whom the form of an object must follow its function. Furthermore, it laid down the aesthetic and technical foundations of an ideal divers’ watch, those of an understated, functional and reliable tool. The sixty years that followed the launch of the original 7922 saw the constant improvement of the TUDOR divers’ watch and each model gained unanimous acclaim from professionals in the field, including some of the greatest military navies in the world.
The distinctive Black Bay GMT captures the essence of the Black Bay in version for world travellers.
USERGUIDE
Glossary
1/7 - rotatable bezel
The rotatable bezel displays the time indicated by the 24-hour hand. It can be turned to 48 positions in either direction.
2/7 - Date Window
Displays the current date.
3/7 - winding crown
The winding crown is used to set the time and date and to wind the watch if it has not been worn. The winding crown is screwed down onto the case to ensure water resistance. It must be fully tightened after each manipulation.
4/7 - 24-hour hand
This hand corresponds to the reference time. 24-hour hand moves around the dial once every 24 hours. According to the position of the bezel, this hand displays a second or a third time zone.
5/7 - seconds hand
The seconds hand can be adjusted via the winding crown or left unchanged when setting the time to different time zones.
6/7 - hour hand
This hand corresponds to local time. This hand moves around the dial once every 12 hours.
7/7 - minute hand
The minute hand can be adjusted via the winding crown or left unchanged when setting the time to different time zones.
Setting your reference time
reference time
The reference time is your “home” or “main” time zone. During a journey, the reference time is indicated by the trianguler tipped 24 hour hand. Setting the reference time also moves the conventional hour hand (local time). For this reason, the reference time must be set before setting the local time.
Step 1/5
Put the bezel in the neutral position (align the triangle on the bezel with the 12 o’clock marker on the dial).
Step 2/5
Your TUDOR watch is equipped with a screw-down crown. Once this is fully screwed down against the case, your watch is guaranteed waterproof. With your finger unscrew the crown to position B. Your watch isn’t waterproof anymore.
Step 3/5
To set the reference time, unscrew the crown and then pull it out to the second notch (position D). The seconds hand is stopped, allowing you to set the time to the precise second.
Step 4/5
Set the reference time using the 24-hour hand (against the graduations on the bezel) and the minute hand (against the graduations on the dial) by turning the crown in either direction. Rotate crown to set reference time to 15:36.
Step 5/5
Push in and then screw down the crown. Your reference time is now set.
Setting your date and local time
local time
The time zone you are travelling to or currently in is considered local time. It is indicated by the conventional hour, minute and seconds hands.
Step 1/6 - neutral position
Put the bezel in the neutral position (align the triangle on the bezel with the 12 o’clock marker on the dial).
Step 2/6
Your TUDOR watch is equipped with a screw-down crown. Once this is fully screwed down against the case, your watch is guaranteed waterproof. Unscrew the crown to position B. Your watch isn’t waterproof anymore.
Step 3/6
To set the date and the local time, pull the crown out to the first notch (position C).
Step 4/6
Set the date by turning the crown in either direction. The hour hand moves in increments of one hour. The date changes when the hour hand passes midnight, in either direction, after two complete turns around the dial. Rotate crown to set the date to 29.
Step 5/6
Set the local time by turning the crown in either direction. The hour hand moves in increments of one hour. Be aware of the difference between noon and midnight (the date changes as the hour hand passes midnight).Rotate crown to set local time to 09:10.
Step 6/6
Push in and then screw down the crown. Your local time is now set.
Read three time zones
time Zones
A third time zone can be displayed by using the rotatable bezel and the 24-hour hand. It is based on the reference time.
reference time
Reference time is indicated by the 24-hour hand and the minute hand.
local time
The local time is identical to the reference time (24-hour hand) if the wearer is currently located in his reference zone. It can be easily adjusted when travelling.
reference time: geneva
Imagine you are in Geneva, your reference time is set to 10:10 a.m.
local time: New York
You are travelling from Geneva to New York.
local time: New York
Local time in New York is 6 hours behind Geneva. The crown in position 2 allows adjusting the local time.
additional time: Tokyo
Now you would like to know what time it is in Tokyo, which is 8 hours ahead of Geneva. Adjust to this time difference with the graduated 24 -hour bezel.
additional time: Tokyo
To display the third time zone, turn the bezel clockwise (for a negative time difference) or anticlockwise (for a positive time difference) according to the time difference between the reference time (24- hour hand) and the time in the desired time zone.
The 24-hour hand read against the bezel indicates the time in the third time zone. The minutes are shown on the dial by the minute hand.
