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Tudor Caliber Mt5402

Tudor Caliber MT5402

Tudor Caliber Mt5402

Brand Tudor
Caliber Number MT5402, MT-5402
In-House? No
Chronometer Rated?
COSC Certified?
Diameter 26mm
Thickness 6.5mm
Jewel Count
Vibrations Per Hour 28,800 bph (4 Hz)
Lift Angle
49 degrees
Accuracy Rating
-2 to +4 sec/day
Power Reserve 70 hours
Balance Spring Silicon, non-magnetic
Oscillator Variable inertia balance, micro-adjustment
Hands Count
Functions Central hours; central minutes; central sweeping seconds
Hacking Seconds?
Country of Manufacture Switzerland, Swiss made
Known Models
Tudor Black Bay Fifty-Eight (Ref: M7903N-001, M7903N-002, M7903N-003, M7903B-001, M7903B-002, M7903B-003), Tudor Heritage Ranger (Ref: M79950-0001, M79950-0002, M79950-0003) (Add your watch in the comments below…)

The Tudor caliber MT5402 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 chronometer (certified by 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.

MT5402 VS MT5400:

There is a similar Tudor caliber MT5400 with the main difference being that the MT5402 discussed on this page is a smaller version of the MT5400 (26mm vs 30.3mm). 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:

“The Ranger model is equipped with Manufacture Calibre MT5402. Its construction has been designed to ensure robustness, longevity, reliability and precision due to its variable-inertia balance, which is held in place by a sturdy traversing bridge with two points of fixation.”

More from the Tudor Ranger marketing materials:

Tudor Mt5402 Ranger Marketing Material

“Manufacture Movement”

The MT5402 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 MT5402 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 MT5402 is found in the Tudor Ranger 39mm (introduced in July 2022). Check back for more models…

Additional Resources:

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Tudor Caliber MT5400 Watch Movement | Caliber Corner
1 year ago

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

David M.
David M.
1 year ago

What’s the better movement? This MT5402 or the Omega Co-Axial 2500?

Matt Sloan
Matt Sloan
1 year ago
Reply to  David M.

They’re both COSC-certified chronometer movements with some similar features. I’d wager that perhaps the 2500 might edge the 5402 out a bit due to the Co-Axial escapement, but it’d be a horserace.

Mike W
Mike W
1 year ago
Reply to  David M.

I’m getting accuracy of about a half of a second fast per day. Unbelievable! New Tudor Ranger. Best luxury watch deal in the world right now.

3 months ago
Reply to  Mike W

You can get that accuracy with off the shelf movements as well like ETAs/Sellitas (even non-chronometer grade movements) and Miyotas, it’s just a matter of how much a watchmaker is willing to spend regulating and adjusting the movement.

I do agree that the Ranger packs a lot of punch and is a bang for the buck, giving us a 70 hour PR and an a-magnetic silicon hairspring. The manual winding also gives you a very satisfying feel and sound.

3 months ago
Reply to  David M.

I don’t think it’s a fair comparison as the 2500 is an old movement from more than a couple of decades ago and has since been replace by the 8 series movements. The initial versions of the 2500 appeared to have problems with the movement stopping even with enough power reserve, and from what I’ve read, Omega addressed these issues with the “D” variant (2500D). I’ve also read issues early on with some 2022 39 mm Tudor Rangers apparently stopping as well, though I’m not sure how widespread they are. I think a more fair comparison would be MT5402 versus… Read more »

Nick Roukis
Nick Roukis
26 days ago
Reply to  David M.

I think Tudor in house calibers reliability are incompareble to the Omegas.You have a very tough brand name that embraces Tudor,the Rolex company.That means everything about quality and commitment

1 year ago

How does one DIY regulate this movement?

Arild Vorkinn
Arild Vorkinn
8 months ago

The most accuracy movement I have ever had, and I have e.g. had 4 different Rolex, after 1 month, 4 sec to fast.

7 months ago

I own a Tudor Ranger equipped with this movement.

Movement runs like a dream.
2 seconds quick in total over 1.5 months! Just incredible.

As mentioned earlier… best watch deal in the world hands down!

Dain Adams
Dain Adams
6 months ago

It’s odd that reviewers keep insisting that Tudor MT Calibers are regulated to -4/+6, when that’s totally incorrect.

1 month ago

why so thick? jeez.

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