Manufacturer | Tudor |
Caliber Number | MT5612, MT-5612 |
In-House? | Yes (although more accurately Kenissi is the manufacturer, which is why Tudor refers to it as a manufacture movement). |
Chronometer Spec? | Yes (COSC Certified) |
Diameter | 31.8mm |
Thickness | 6.5mm |
Jewels | 26 |
Vibrations Per Hour | 28,800 bph (4 Hz) |
Power Reserve | 70 hours |
Rotor Winding Direction | Bi-directional |
Hand-Windable? | Yes |
Balance Spring | Silicon, non-magnetic |
Balance Wheel | Variable inertia, micro-adjustment by screw |
Functions | Central hours; central minutes; central sweeping seconds; date at 3:00 |
Hacking Seconds? | Yes |
Country of Manufacture | Switzerland, Swiss made |
Known Models | Pelagos (Ref: M25600TB-0001, M25600TN-0001, M25610TNL-0001); Tudor Black Bay P01 (Ref: M70150-0001) (Add your watches to the comments below…) |
The Tudor caliber MT5612 is a time and date automatic movement tuned to run within chronometer spec and certified by COSC. This movement was originally introduced in 2015 (the photo above was captured by Caliber Corner at Baselworld 2015).
It is considered to be an in-house movement, although more accurately Kenissi is the manufacturer, which is why Tudor refers to it as a manufacture movement.
The MT5612 is equipped with a bidirectional rotor system and variable inertia balance, micro-adjustment by screw. This caliber also features a non-magnetic silicon balance spring.
There is a similar Tudor caliber MT5602 (found in the Heritage Black Bay), with one less jewel and no date complication. Both MT56 calibres are 28,800 vph and 70 hr power reserve.
In Tudor’s own words:
“The Pelagos is powered with the new TUDOR Manufacture Calibre MT5612, providing impressive autonomy. Its power reserve of approximately 70 hours means 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. In addition to the hour, minute and central second functions, it provides an instant date display visible through an aperture positioned at 3 o’clock. Beating to a frequency of 28,800 beats/hour or 4Hz, this movement is regulated by a variable inertia oscillator with silicon balance spring, held in place by a traversing bridge fixed at both sides to improve resistance to shocks and vibrations. Its self-winding system is bidirectional. The movement is certified by the Swiss Official Chronometer Testing Institute (COSC).”
Pelagos ETA 2824-2 (V1) vs MT5612 (V2)
The first edition of the Pelagos has an ETA caliber 2824-2 movement. These models can be found on the used market for a lower price than the updated models with the in-house caliber MT5612 featured here. The easiest way to tell the difference between the two watches is that the ETA (V1) model only has two lines of text on the dial. This is sometimes referred to by Tudor enthusiasts as the two liner. The in-house model has five lines of text and a different caseback to accommodate the new movement.
V1 ETA 2824-2 Dial Text
ROTOR SELF-WINDING
500m : 1640ft
V2 Tudor MT5612 Dial Text
PELAGOS
CHRONOMETER
OFFICIALLY CERTIFIED
ROTOR SELF-WINDING
500m : 1640ft
Examples of watches with this movement:
Additional Resources
Recent Comments
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Beautiful watch, thank you for sharing with the community!