Wear a smartwatch with your Tudor Monarch

Wear a smartwatch with your Tudor Monarch

Smartlet is compatible with the Tudor Monarch. The 2026 collection uses a standard 20mm lug width despite its integrated look, natively supported with no adapter. Installation uses the standard spring-bar system, fully reversible in seconds.
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Tudor Monarch compatibility

Wear a smartwatch with your Tudor Monarch

In short Smartlet is compatible with the Tudor Monarch. The 2026 collection uses a standard 20mm lug width despite its integrated look, natively supported with no adapter. Installation uses the standard spring-bar system, fully reversible in seconds.

The Monarch is Tudor's statement piece for its 2026 centenary: an entirely new collection with a faceted 39mm steel case, a dark champagne California dial with small seconds, and the Master Chronometer MT5662-2U calibre. Its H-link bracelet gives an integrated appearance, but the lugs are standard 20mm spring bars. Smartlet One replaces the bracelet and positions your smartwatch on the same wrist, with the case, dial and movement untouched.

Wear yours How it works
The problem
Choosing between health data and horological heritage every morning.
The solution
Smartlet One replaces your Tudor Monarch's strap via the standard spring-bar system and positions your smartwatch on the same wrist. Both watches run simultaneously, with no modification to the watch and full reversibility in seconds.
Model
Tudor Monarch
Lug width
20mm
References
1covered
Reversible
In seconds

Choose your edition

One mechanism. Three personalities.

Every Smartlet One includes the dedicated adapter for your wearable. Pick the finish that matches your style.

Smartlet One - Shadow - Smartlet

For the explorer

Smartlet One - Shadow

€399,00

4.9 (14)

Stealth. Switch in seconds, leave no trace.

  • Material SS316L steel, black PVD
  • Weight ~100g
  • Compatible with Rolex, Omega, Seiko + 100 more
Buy now
Compatibility

Tudor Monarch models supported

Covered references

1 references covered.

ReferenceMaterialDialLugSmartlet
M2639W1A0U-0001SteelDark champagne California20mmCompatible

Tudor Monarch lug widths: 20mm

An entirely new collection for Tudor's 2026 centenary. Faceted 39mm steel case, 11.9mm thin, dark champagne California dial with small seconds, Master Chronometer MT5662-2U calibre with 65-hour reserve, 100m water resistance. The faceted H-link bracelet gives an integrated look, but the lugs are standard 20mm spring bars, fully compatible with Smartlet One.
Frequently paired

Smartwatches worn with Tudor Monarch

The most common combinations our customers wear. Find your mechanical watch and discover the right Smartlet edition.

Apple Watch
Series 0 to Ultra 3
Whoop
5.0 / MG
Garmin Forerunner
255 to 965
Samsung Galaxy Watch
Series 4 to 7
Withings ScanWatch
Light / 2 / Nova
View all brands
27 brands covered
Also compatible

Other brands

Other iconic models in the Smartlet compatibility library.

Submariner
Daytona
GMT-Master
Datejust
Yacht-Master
Sky-Dweller
Explorer
Seamaster 300m
Speedmaster
Planet Ocean
Constellation
De Ville
Monaco
Carrera
Formula 1
Aquaracer
Portugieser
Navitimer
Superocean
Avenger
Black Bay
Pelagos
Ranger
Luminor
Radiomir
Submersible
SKX
Prospex
Presage
Khaki Field
BR 03-92
Fifty Fathoms
Reverso
SUB 300
Spring Drive
Essence Leggera
Aquis
Divers Sixty-Five
Chronograph 1
Captain Cook
Superman Heritage
El Primero
Alle anzeigen
Black Bay 58 GMT
View all models
Watch brand compatibility guide

Step by step

Replace your strap
01

Replace your strap

Smartlet replaces your mechanical watch strap via the standard spring-bar system. Classic, Shadow, or Titanium. No tools required.

Connect your wearable
02

Connect your wearable

Smartlet uses a dedicated adapter or native lug pins depending on your smartwatch. The connector snaps onto the Smartlet module. Zero modification to the mechanical watch.

Wear both simultaneously
03

Wear both simultaneously

Both watches sit on the same wrist. All smartwatch sensors maintain direct skin contact and operate normally.

Questions

Frequently asked questions

  • Does Smartlet work with the Tudor Monarch?
    Yes. Despite its integrated look, the 2026 Monarch (reference M2639W1A0U-0001) uses standard 20mm spring-bar lugs, natively supported by Smartlet One with no adapter.
  • Is the Monarch bracelet really removable?
    Yes. The faceted H-link bracelet attaches via standard spring bars; the vertical lines running to the lugs are decorative engravings on the case. Smartlet One replaces the bracelet in seconds, fully reversibly.
  • Which Tudor Monarch references are compatible?
    The Monarch launched in 2026 as a single configuration, reference M2639W1A0U-0001 with a dark champagne California dial. It is fully compatible with Smartlet One in 20mm.
  • Beschädigt oder verändert Smartlet meine mechanische Uhr?
    Nein. Smartlet ersetzt Ihr Standard-Uhrenarmband mit dem vorhandenen Federstift-System. Es werden keine dauerhaften Änderungen am Uhrengehäuse, den Hörnchen oder dem Zifferblatt vorgenommen. Der Vorgang ist vollständig reversibel und dauert nur Sekunden. Ihre mechanische Uhr bleibt unbeeinträchtigt und kann jederzeit unabhängig getragen werden, indem Sie einfach das Originalarmband wieder anbringen. Smartlet ist nach Uhrmacher-Toleranzen konstruiert und wird mit der gleichen Sorgfalt getestet, die auch in die Uhren fließt, mit denen es kombiniert wird.