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Certified Pre-Owned Watch Program

Sold!!! TUDOR Black Bay Dark 79230DK 41mm Black Nato Automatic Box and Papers Free Strap

Regular price $0.00

Out of stock

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.

This is a beauty Tudor Black Bay Watch. BLACK PVD-TREATED COATING

The characteristic features of the Black Bay Dark model centre on the 41 mm wide steel case, finished with a black PVD-treated coating.

Directly derived from the thin film technology originally developed by NASA for its various space programmes, PVD or “Physical Vapour Deposition” enables practically any inorganic material to be bonded with metals. The Black Bay Dark has an entirely satin finished matt finish, giving it the appearance of black military utility equipment. 


In 2015, TUDOR announced its first Manufacture Calibre in its history. A high-performance calibre of excellent precision and proven robustness, it offers a 70-hour power reserve meaning that its wearer can, for example, take off the watch on Friday evening and put it on again on Monday morning without having to wind it. Beating to a frequency of 28,800 beats/hour or 4Hz, the movement is regulated by a variable inertia oscillator with silicon balance spring, held in place by a traversing bridge - a guarantee of its robustness. Furthermore, the movement is certified by the Swiss Official Chronometer Testing Institute (COSC).

The Black Bay Dark features the particularly prominent winding crown from the famous 7924 reference of 1958, aka the Big Crown, while its characteristic angular hands, known as snowflake, were borrowed from TUDOR watches used by the French National Navy in the 1970s.

This is a variant of the TUDOR Manufacture Calibre developed for the Black Bay model. It displays hours, minutes and seconds, and bears the reference MT5602, in which “MT” stands for “Manufacture TUDOR”.Please look at all the pictures, as they are part of the description. The watch is working and in great condition the previous owner barely wore it.  This a great Rolex Submariner like watch with the same company making it.  The condition of the watch is the same as it appears in the photos.  The watch is working.  Contact me if you have any questions first.






Black PVD-treated steel case with satin finish. Has some scratches and PVD removed at the lug. 

Case Size

  41,00 mm without the crown

Case Back

Black PVD-treated steel case back, cover marked. Screw Back


Signed, Screw-down winding crown in black PVD-treated steel engraved with the TUDOR rose. Has some scratches and PVD removed 


Domed sapphire crystal, Great condition


Diving, Unidirectional rotatable steel bezel in black PVD-treated steel with matt black anodised aluminium disc. Has some scratches and PVD removed by the 10 and 43 


Black Dial, Luminous hands & indices dial, Swiss made Mark, with the seconds Hand. Please see picture for more detail.


Seconds, Diving.


Automatic Chronometer Manufacture Calibre MT5602 (COSC)

Movement Notes

Self-winding mechanical movement with bidirectional rotor system

Power reserve of approximately 70 hours. Just inspected and in great shape. Please see pictures. Movement is running. Keeps great time see below time testing.


Genuine Tudor Nato anthracite fabric strap with matt black PVD-treated buckle in good condition. Extra Free Nato Strap with PVD Black Buckle Lug Size: 22mm      Please see picture.


Come with original box and papers

Reference #


Made in


Water Resistance

200M. Please pressure test before water use.

Service Level

3      (Please see Tab below for details)

Timing Test **

-1s/day  In-House Time Test Results (See Service Level Tab)**

Certified Pre-Owned

Yes Passed 25-point inspection. Please see tab below for details.


3-Month Service Warranty (Please see Tab below for details)


All watch functions tested and operable. Original Purchased Tourneau 05/31/2017



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