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Tudor MT5402

High confidence

Exists because the MT5602 is too large for the 39mm case, not because Tudor wanted a second caliber. That is worth knowing: caliber and case size are linked on modern Tudor, so an MT5602 in a 39mm Black Bay 58 case is a physical contradiction rather than a variant.

Specifications

Movement manufacturer
Tudor
Production
2018–present
Frequency
28,800 vph (4 Hz)
Jewels
27
Power reserve
70 hours
Winding
automatic
Complications
Centre seconds
Certification
COSC

Architecture

Manufacture automatic with a variable-inertia balance on a traversing bridge and a silicon hairspring; the smaller-diameter member of the family, made for the 39mm Black Bay 58 case.

Related calibers

References using this caliber

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

TUDOR — official watch and movement specifications

Montres TUDOR SA

Accessed
2026-08-18

Cited for

This referenceConfirmed
View source
Primary sourceTechnical documentation

COSC — Contrôle Officiel Suisse des Chronomètres: testing criteria

COSC

Accessed
2026-08-18

Cited for

This referenceHigh confidence
View source

Last verified: Not yet reviewed