|Winding:||Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding|
|Diameter:||33.8 mm (15 ligne)|
|Hands:||Central Hour Hand, Central Minute Hand, Central Seconds Hand|
|Distinguishing Technical Characteristics|
|Production: 2016 – Current|
Cal. MT5601 is an in-house automatic movement from Tudor, introduced in 2016.
Cal. MT5601 was introduced in 2016 shortly after the first Manufacture Tudor movement, Cal. MT5621. It is a simple movement with no date or other complications, and is differentiated from the similar Cal. MT5602 by its larger 33.8 mm diameter. It is a mainstream automatic movement, including common features like central seconds, bi-directional winding using a central rotor, and hacking seconds. Being a modern design created by Rolex, it uses a variable-inertia balance with micro-adjustment by screw and silicon balance spring.
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.
|31.8 mm||33.8 mm|
|Power Reserve, Date||MT5621|
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.