MT5612

	Brand:	Kenissi, Tudor
	Family:	Tudor MT56 Family
	Height:	6.5 mm
	Jewels:	26
	Reserve:	70 hours
	Frequency:	28,800 A/h
	Winding:	Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding
	Diameter:	31.8 mm (14 ligne)
Tudor MT5612	Complications:	Date, Hacking Seconds, Instant Date Change, Quick Date Correction
	Hands:	Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00

Distinguishing Technical Characteristics
Central-Rotor Automatic Balance Bridge Variable-Inertia Balance Balance at 7:00
Production: 2015 – Current
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

Cal. MT5612 is an in-house movement from Tudor, introduced in 2015.

Cal. MT5612 was introduced in 2015 shortly after the first Manufacture Tudor movement, Cal. MT5621. It is quite similar, though without the power reserve indicator. It is a mainstream automatic movement, including common features like central seconds and a conventional date wheel. Being a modern movement, it also has updated technology, including bi-directional winding, hacking seconds, instantaneous date change with crown-based quickset, and a variable-inertia balance with micro-adjustment by screw and silicon balance spring.

Kenissi produces variants of this movement for other makers:

• Breitling Cal. B20
• Norqain NN20/1

Cal. MT5612-LHD

Tudor also produces a “left-hand drive” version. Known as Cal. MT5612-LHD, it has a different date wheel, allowing the crown to be placed on the left side of the case.

Tudor MT56 Family Overview

Tudor traditionally used movements from major manufacturers, chiefly ETA in modern times, as a differentiator from parent company Rolex. Beginning in 2015, the company began producing a line of “Manufacture Tudor” movements for certain models, beginning with Cal. MT5621. These are based on Rolex technology, and include that company’s silicon hairspring technology, full balance bridge and free-sprung Microstella balance wheel.

In 2016, Tudor founded a new movement producer in Geneva known as Kenissi managed by Eric Yvon Pirson (head of Tudor), Jean-Paul Girardin (formerly of Breitling), and Philippe Jacques Dalloz. Two years later, the company constructed a new factory in Le Locle on land owned by Rolex. Chanel invested in Kenissi in 2019, taking a 20% stake in the company. As of 2020, Kenissi produces movements for Tudor, Chanel, Breitling, and Norqain.

Note that Tudor also produces a smaller movement, Cal. MT5402. Although it shares many characteristics with this family of movements, it is different in many details and is considered unrelated.

Manufacturer Link