Tudor Manufacture Calibre MT5402
Buyer meaning: A serious modern three-hand movement with 70h reserve, COSC certification and silicon balance spring.
Quick answer
What is the Tudor Manufacture Calibre MT5402?
A serious modern three-hand movement with 70h reserve, COSC certification and silicon balance spring.
- MovementIntel
- 87/100
- Jewels
- 27
- Power reserve
- 70h
- Linked watches
- 1
Strengths & weaknesses
Strengths
- COSC-certified with non-magnetic silicon balance spring
- Approximately 70-hour power reserve in a compact 26 mm package
- Variable inertia balance with micro-adjustment by screw
- Strong Tudor Manufacture Calibre positioning without generic ETA/Sellita base
Weaknesses
- Finishing is practical industrial work, not haute horlogerie exhibition grade
- Independent service access is narrower than common Swiss ebauche movements
- Manufacture ecosystem nuance means do not overclaim sole in-house component production
Why this movement matters
Power reserve
70 hours means you can take the watch off over a weekend and it will usually still be running Monday morning. That is a genuinely useful reserve for a daily wearer, not just a marketing rounding exercise.
Frequency
28,800 beats/hour / 4 Hz is a common modern automatic rate. Higher frequency can improve stability in some conditions, but service access and long-term ownership matter more than Hz alone.
Certification
COSC chronometer means the movement passed an independent timing standard before leaving the factory. That is useful, but it does not replace long-term ownership feedback or service network access.
Serviceability
Good through Tudor's authorized service network. Because the MT5402 is a modern manufacture calibre, independent serviceability may be less straightforward than common ETA/Sellita-based watches.
Movement origin
WatchIntel classifies this as Tudor Manufacture Calibre. Origin labels matter because they affect service access, resale narrative and whether marketing language matches what is actually inside the case.
Finishing
The openwork rotor is entirely satin-brushed. The bridges and mainplate have alternating sand-blasted surfaces and laser decorations. Finishing on tool-watch calibres is often practical rather than exhibition-grade. That is not automatically a flaw if the movement is robust and well regulated.
Score breakdown
Compact three-hand architecture with silicon hairspring, variable inertia balance and COSC certification in a modern tool-watch package.
High confidenceCOSC certification and modern regulation hardware; strong for a daily tool watch, not haute chronometry.
High confidenceRoughly 70 hours is genuinely useful for weekend rotation without constant resetting.
High confidenceDesigned as a modern Tudor tool calibre with silicon spring; proven field use in BB58-class watches.
Medium confidenceStrong authorized Tudor service route, but modern manufacture ecosystem and silicon parts reduce independent-service simplicity versus ETA/Sellita.
Medium confidenceStrong modern Tudor architecture, but not high complication or haute horlogerie; manufacture ecosystem rather than every component solely Tudor-made.
Medium confidenceOfficial Tudor industrial finishing with laser decoration; not exhibition haute horlogerie.
High confidenceStrong movement for mid-premium Tudor watches; elevates BB58-class models without Rolex pricing.
Medium confidenceMovement honesty
Public label: Tudor Manufacture Calibre
Official manufacture branding with shared production partners or group ecosystem supply. Stronger than generic ebauche, but not the same as every component being made in one isolated factory.
Source nuance: Tudor officially calls MT5402 a Manufacture Calibre. Secondary movement sources discuss Kenissi involvement. WatchIntel should not call it a generic outsourced ETA/Sellita movement, but should also avoid overclaiming that every component is made solely by Tudor.
MT5402 is a Tudor Manufacture Calibre, COSC-certified, automatic, with approximately 70 hours of power reserve, 27 jewels, 4Hz frequency and a silicon balance spring. It is a serious modern movement for this price segment. The correct criticism is not movement quality, but whether the buyer wants a vintage-inspired Tudor diver rather than a more original design or a more tool-like Pelagos.
WatchIntel never overclaims "in-house" without source nuance. Manufacturer marketing language may differ.
Technical specifications
About this movement
A compact Tudor Manufacture Calibre introduced for medium-sized Tudor watches, notably the Black Bay Fifty-Eight.
Serviceability
Good through Tudor's authorized service network. Because the MT5402 is a modern manufacture calibre, independent serviceability may be less straightforward than common ETA/Sellita-based watches.
Value context
The MT5402 is a key reason mid-premium Tudor tool watches punch above generic ebauche competitors. Value depends on the watch around it, not the movement alone.
Best watches using this movement
WatchIntel linked watches
Published references in our database. This list is not complete.
Known external watches using this movement
Documented outside our database. Not an exhaustive industry list.
- Tudor Black Bay Fifty-EightM79030N
- Tudor Black Bay Fifty-EightM79030N-0001
- Tudor Black Bay Fifty-EightM79030N-0002
- Tudor Black Bay Fifty-EightM79030N-0003
- Tudor Black Bay Fifty-Eight Navy BlueM79030B
- Tudor Black Bay Fifty-Eight Navy BlueM79030B-0001
- Tudor RangerM79950
- Tudor RangerM79950-0001
Compared with similar movements
Same Tudor MT54-family philosophy with date complication on MT5400. Architecture and ecosystem are closely related; comparison pending full side-by-side verification.
Larger Tudor manufacture three-hand calibre used in standard Black Bay models. Similar philosophy but different case-fit dimensions; pending verification.
Rolex manufacture calibre with stronger prestige narrative in Rolex watches. Service and pricing context differ; direct movement comparison pending verification.
Master Chronometer certification and Co-Axial architecture offer a different precision story. Trade-offs in service ecosystem and watch pricing; pending verification.
Generic Swiss ebauche movements are usually easier and cheaper to service independently, but lack MT5402 power reserve, silicon spring and manufacture positioning.
Sources
Field-level verification references for this movement page.
Frequently asked questions
What is the Tudor MT5402?+
MT5402 is a Tudor Manufacture Calibre used in medium-sized Tudor watches such as the Black Bay Fifty-Eight. Official Tudor data lists it as a self-winding mechanical movement with 70h power reserve, COSC certification, silicon balance spring and 27 jewels.
How many jewels does MT5402 have?+
27 jewels. The previous WatchIntel value of 26 was wrong.
What is the diameter of MT5402?+
26mm. The previous WatchIntel value of 31.8mm was wrong.
What is the frequency of MT5402?+
28,800 beats/hour, which equals 4Hz. Do not display 8Hz.
Is MT5402 in-house?+
Use careful wording. Tudor officially calls it a Manufacture Calibre. Secondary sources discuss the Kenissi/Tudor manufacture ecosystem. WatchIntel should not call it off-the-shelf ETA/Sellita, but should avoid unsourced claims that every part is made solely by Tudor.
Is MT5402 easy to service?+
Service should be described carefully. It is best handled through Tudor authorized service or qualified Tudor-capable specialists. Do not publish fixed intervals, costs or parts-availability claims without source-backed data.
WatchIntel is independent. Not affiliated with Tudor, Rolex, Omega, TAG Heuer, Seiko, Hublot or any other watch brand.