Tudor Monarch & Apple Watch on the same wrist

Tudor Monarch & Apple Watch on the same wrist

Yes. Despite its integrated look, the Tudor Monarch uses standard 20mm spring-bar lugs, natively supported by Smartlet One. The Monarch mounts on the outer wrist; the Apple Watch clips into the Smartlet module on the inner wrist with full skin contact.
Forbes · CNET
|
250+ clients
|
35+ countries
|
CES 2026 · Lépine 2025
|
Patented
Compatibility guide

Tudor Monarch & Apple Watch on the same wrist

Tudor Monarch + Apple Watch
Yes. Despite its integrated look, the Tudor Monarch uses standard 20mm spring-bar lugs, natively supported by Smartlet One. The Monarch mounts on the outer wrist; the Apple Watch clips into the Smartlet module on the inner wrist with full skin contact.
Tudor Monarch lug width
20mm
Apple Watch compatibility
Series 0 to Ultra 3
Adapter
Native 20mm connection, in every Smartlet box
Sensor accuracy
Fully maintained

Why early adopters pair the Tudor Monarch with Apple Watch

Liquid error (sections/compat-combo-section line 172): metafield_tag can only be used with a metafield drop

Is the Tudor Monarch compatible with Apple Watch on Smartlet?

Compatible
Yes. Despite its integrated look, the Tudor Monarch uses standard 20mm spring-bar lugs, natively supported by Smartlet One. The Monarch mounts on the outer wrist; the Apple Watch clips into the Smartlet module on the inner wrist with full skin contact.
Tudor Monarch lug width
20mm Supported
Standard spring-bar system
Apple Watch model
Series 0 to Ultra 3
Native 20mm connection, in every Smartlet box
Sensor accuracy
Fully maintained
Inner wrist position
Reversible
In seconds
No modification to the watch

Related compatibility guides

More ways to wear Smartlet

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

  • Is the Monarch's bracelet really removable for Smartlet?
    Yes. The 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 Monarch references are compatible?
    The Monarch launched as reference M2639W1A0U-0001 with a dark champagne California dial. It is fully compatible with Smartlet One in 20mm.
  • Will Smartlet mark the Monarch's faceted case?
    No. Smartlet attaches at the lug ends via the spring bars, exactly like the original bracelet. The case never makes contact with the module.
  • ¿Smartlet daña o modifica mi reloj mecánico?
    No. Smartlet reemplaza tu correa de reloj estándar utilizando el sistema de pasador de resorte existente. No realiza ninguna modificación permanente en la caja, asas o esfera del reloj. El proceso es completamente reversible en segundos. Tu reloj mecánico no se ve afectado y puede usarse de forma independiente en cualquier momento reinstalando su correa original. Smartlet está diseñado con tolerancias de relojero y probado con el mismo cuidado que se dedica a los relojes con los que se empareja.