Tudor Caliber Mt5400

Tudor Caliber MT5400

Tudor Caliber Mt5400

Caliber NumberMT5400, MT-5400
Vibrations Per Hour28,800 bph (4Hz)
Lift Angle
49 degrees
Power Reserve70 hours
Jewel Count
Balance SpringSilicon, non-magnetic
OscillatorVariable inertia balance, micro-adjustment
Chronometer Rated?
COSC Certified?
Hacking Seconds?
Hands Count
FunctionsCentral hours; central minutes; central sweeping seconds
Country of ManufactureSwitzerland, Swiss made
Known Models
Black Bay Fifty-Eight Bronze 39mm (Ref: M79012M-0001), Black Bay Fifty-Eight 925 39mm (Ref: M79010SG-0001, M79010SG-0002) and 18K (Ref: M79018V-0001), Pelagos 39 (Ref: M25407N-0001), Black Bay 36 S&G (steel and gold TT)

The Tudor caliber MT5400 is a true no-date (ND), 3-hander automatic movement with 27 jewels and a beat rate of 28,800 vph (4Hz). This manufacture movement is a Certified Chronometer (COSC), equipped with a bidirectional rotor system and variable inertia balance, micro-adjustment by screw. This caliber also features a non-magnetic silicon balance spring.

MT5400 VS MT5402:

There is a similar Tudor caliber MT5402 with the main difference being that the MT5400 discussed on this page is a slightly enlarged version of the MT5402 (~30.3mm vs 26mm). The reason for the larger diameter of the MT5400 is purely cosmetic, due to the fact that watches powered by this caliber (such as the 925 and gold Black Bays) feature an exhibition style caseback.

Tudor Mt5400 Vs 5402 Compared

In Tudor’s own words:

“Together with its non-magnetic silicon hairspring, the Manufacture Calibre MT5400 is certified as a chronometer by the Swiss Official Chronometer Testing Institute (COSC), with its performance going beyond the standards set by this independent institute. In fact, where COSC allows an average variation in the daily running of a watch of between -4 and +6 seconds in relation to absolute time in a single movement, TUDOR insists on between -2 and +4 seconds’ variation in its running when it is completely assembled.”

From the Black Bay Fifty-Eight 925 marketing materials:

Tudor Mt5400 Marketing

From the Pelagos 39 marketing materials (essentially the same as above):

Tudor Mt5400 Marketing Pelagos 39

“Manufacture Movement”

The MT5400 is another movement that some label as an in-house movement, but Tudor themselves refer to as a manufacture movement. Even more confusion comes about due to the fact that calibers such as the MT5400 are manufactured by Kenissi (not exactly Tudor), but Kenissi is owned in part by Tudor (Chanel being the other part). This just means that the movement wasn’t 100% designed and produced entirely by Tudor itself, but and outside supplier – that happens to be owned by Tudor.

Watches with this movement:

The Tudor calibre MT5400 is found in the Tudor Black Bay Fifty Eight Bronze (introduced in June 2021), the Fifty-Eight 925 and 18K (introduced in April, 2021), as well as the Pelagos 39 (announced in 2022).

Additional Resources:

You are reading Caliber Corner, the most popular resource for watch movement pics, specs, mods and DIY repairs. Follow @calibercorner on Twitter, Instagram but NOT Facebook. Subscribe on YouTube. Join our mission to spread movement awareness!
What do you think about Tudor Caliber MT5400? Keep comments respectful and follow our community guidelines.
Notify of

newest most voted
Inline Feedbacks
View all comments
Tudor Caliber MT5402 Watch Movement | Caliber Corner
1 year ago

[…] is a similar Tudor caliber MT5400 with the main difference being that the MT5402 discussed on this page is a smaller version of the […]

8 months ago

Love my Pelagos 39, and the accuracy is really between -2 +2 second/day for me, no question, one of my best watches and movements in parallel.

8 months ago


James Wilson
James Wilson
8 months ago

I see Tudor is using this movement in their new Black Bay 54, so I wanted a refresher course if you will. Not that anyone asked but I wear a Black Bay 41 Heritage and I couldn’t be happier with the movement (MT5602?). Most days it runs w/o gaining not losing any time, I’m not kidding! Speaking strictly for myself I love automatic watches and this COSC equipped movement has gone past my expectations, and… Read more »

6 months ago

Hi, got the Tudor BB 54, the crown is very hard to rotate when hand winding. Is that normal on a new watch? Power never drained since i got it i wear it daily.

Ken Chee
Ken Chee
6 months ago
Reply to  Rolexologue

Same with my bb58 which has the mt5402 movement. Yours has the Mt5400. Bit of a chore to wind. Mabe also to do with the crown.

Interesting to learn of your predicament. Was thinking of new bb36 which has the same movement as yours. Will try the winding mechanism first if I were to buy it.

6 months ago
Reply to  Ken Chee

I also noticed that when i left it to drain, the rotation was less torque resistant as i wound it.
Thank you for your comment!

1 month ago

I have the BB54 the movement to runs pretty spot on. Worn (-1.1 sec/day) and stored overnight at 6 o’clock up (+1.5 sec/day). It’s gained +5sec in a month since purchase.

I haven’t performed a power reserve test as I really don’t want to take it off.

Excellent movement and watch.

22 days ago

Is there some protection against over winding? I didn’t try it, but I’ve noticed enormous resistance on the crown when fully wound.

10 days ago

Thanks for the info, very much appreciated, i always come to calibre corner to investigate movements, thanks a lot.

Venus Caliber 178
Would love your thoughts, please comment.x