Tudor Caliber MT5612 Complete Guide


Tudor Caliber MT5612 Complete Guide

Since its relaunch in 2009, Tudor has worked has to build its very own image, product lines, and calibers. Tudor has successfully distanced itself from its bigger brother, while maintaining a well-respected image and reputation of making high-quality timepieces, with an impressive finish, at a relatively affordable price if you consider what you are getting.

In the watchmaking industry, if you want to be taken seriously, you need to develop and manufacture your own in-house calibers. Therefore, over the years, Tudor has invested heavily in making in-house movements. In this article, we are going to look closer at one of them – the caliber Tudor caliber MT5612.

Tudor Caliber MT5612 specifications

Tudor MT5612

The Tudor Caliber MT5612 is a fully in-house developed movement. The ”MT” stands for ”Manufacture Tudor” and tells us that it is in an in-house movement. It was released by Tudor in 2015.

The caliber has a power reserve of 70 hours which is rather impressive.


At its core, it’s a standard time movement with hours, minutes, and seconds, but it also has a date function positioned at 3 o’clock.

The movement beats at a frequency of 28,800 beats per hour (4 Hz). This is the same frequency that its bigger brother Rolex has used for its in-house movements for many decades. The movement is also COSC-certified. As you would expect, the Tudor Caliber MT5612 has a bidirectional rotating bezel that powers the watch. The movement is, in turn, regulated by a variable inertia oscillator with a silicon balance spring. Tudor has also used a traversing bridge on both sides of the spring in order to improve the caliber’s resistance to shocks. The silicon balance spring also improves the caliber’s anti-magnetic characteristics.

Tudor MT5612

The difference between the Tudor Caliber MT5612 and the MT5602 is the fact that the latter does not have a date function, and has one less jewel.

The Caliber MT5612 is used both in the Heritage Black Bay and the Pelagos models, but only the Black Bay watches have a date function. The caliber has stop-seconds for precise time setting and instantaneous date with rapid setting. It has 26 jewels and a thickness of 6.5mm. The diameter is 31.8mm.

Quick Specifications

  • Caliber:  Tudor Manufacture Calibre MT5612
  • Functions: Hours, minutes, seconds, date. Self-winding mechanical movement with a bidirectional rotor system. Instantaneous date with a rapid setting without non-correction range Stop-seconds for precise time setting
  • Certification: COSC certified.
  • Jewels: 26
  • Details:  Variable inertia balance, micro-adjustment by screw. Non-magnetic silicon balance spring
  • Frequency: 28,800 beats/hour (4 Hz)
  • Diameter: 31.8 mm
  • Thickness: 6.5 mm
  • Power reserve:  70 hours
  • Used in: All in-house Pelagos models and Heritage Black Bay models with date function.

In developing the MT5612, Tudor has taken help from its bigger brother Rolex. Rolex has centuries of expertise in making in-house movements, and this is something that gives Tudor a competitive edge over its competitors. This allows Tudor to make more accurate, reliable, and robust movements that will last for years.

2 thoughts on “Tudor Caliber MT5612 Complete Guide

  1. Tudor is the working peoples lifetime tool watch, something Rolex with all it’s glitz & high price has moved away from. I’ve got 3 Rolex’s left having given 4 to deserving family members and selling 8. Now I have Ten Tudors dating to 1965 (A Sub) and a new Pelagos & a Beautiful Harrods green Limited Black Bay. Having purchased the Harrods at well over list (I’m in Fla.) I can do this with the silly profits I made on my Rolex’s.

    1. Thank you very much for sharing your thoughts and experience!

      Tudor is indeed a great watch company!

      Kind regards,
      Millenary Watches

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