Omega Speedmaster & Apple Watch on the same wrist

Omega Speedmaster & Apple Watch on the same wrist

Yes. The Omega Speedmaster is fully compatible with Smartlet One. The Moonwatch Professional uses a 20mm lug width. Other Speedmaster references range from 18mm to 22mm, all within Smartlet's supported range. Apple Watch mounts on the inner wrist via the Smartlet module. The Speedmaster's hesalite crystal and manual-wind movement remain entirely untouched.
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Compatibility guide

Omega Speedmaster & Apple Watch on the same wrist

Omega Speedmaster + Apple Watch
Yes. The Omega Speedmaster is fully compatible with Smartlet One. The Moonwatch Professional uses a 20mm lug width. Other Speedmaster references range from 18mm to 22mm, all within Smartlet's supported range. Apple Watch mounts on the inner wrist via the Smartlet module. The Speedmaster's hesalite crystal and manual-wind movement remain entirely untouched.
Speedmaster lug width
18mm to 22mm by reference
Moonwatch Professional
20mm
Apple Watch series
All Series 4 and above
Setup time
Under 2 minutes

Why Omega Speedmaster owners wear Apple Watch too

Is the Omega Speedmaster compatible with Smartlet One?

Compatible
Yes. The Omega Speedmaster is fully compatible with Smartlet One. The Moonwatch Professional uses a 20mm lug width. Other Speedmaster references range from 18mm to 22mm, all within Smartlet's supported range. Apple Watch mounts on the inner wrist via the Smartlet module. The Speedmaster's hesalite crystal and manual-wind movement remain entirely untouched.
Speedmaster lug width
18mm to 22mm Supported
Moonwatch Professional = 20mm, verify your reference
Apple Watch models
All Series 4 and above
Series 9, Ultra 2, SE, all sizes
Smartlet model
Classic, Shadow or Titanium
From 299 EUR
Watch integrity
Zero contact with case
Spring-bar slots only, fully reversible

Related compatibility guides

Model guide
Omega Speedmaster
→
Brand guide
All Omega models
→
Smartwatch guide
Apple Watch compatibility
→

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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

  • Which Speedmaster references are compatible with Smartlet?
    The Speedmaster Moonwatch Professional uses a 20mm lug width and is fully compatible. Other Speedmaster references range from 18mm to 22mm depending on the model. All are within Smartlet's supported 18-24mm range. Verify your specific reference lug width on the Omega Speedmaster compatibility page.
  • Will Smartlet scratch the Speedmaster case?
    No. Smartlet One attaches via the spring-bar slots only, with no contact with the case, bezel, or crystal. All contact points are polished 316L stainless steel or titanium, non-abrasive against the Speedmaster's stainless steel case.
  • Can I wind the Speedmaster while wearing it on Smartlet?
    Yes. The crown remains fully accessible. Smartlet replaces the strap only. The case, crown, and all watch functions remain completely unobstructed.
  • Does Smartlet damage or modify my mechanical watch?
    No. Smartlet replaces your standard watch strap using the existing spring-bar system. It makes no permanent modification to the watch case, lugs, or dial. The process is fully reversible in seconds. Your mechanical watch is unaffected and can be worn independently at any time by reinstalling its original strap. Smartlet is engineered to watchmaker tolerances and tested with the same care that goes into the watches it pairs with.