Smartlet One

One concept. Three different personalities

Omega Speedmaster and Apple Watch on the same wrist

Compatibility guide

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.
Speedmaster lug width18mm to 22mm by reference
Moonwatch Professional20mm
Apple Watch seriesAll Series 4 and above
Setup timeUnder 2 minutes
Context

Why Omega Speedmaster owners wear Apple Watch too

Moon-tested precision, wrist-worn technology

The Omega Speedmaster has accompanied astronauts since 1965. The Apple Watch Ultra 2 represents the current peak of wrist-worn technology.

Wearing both is not a contradiction. It is the natural position of someone who values both craft and function. The Speedmaster's Cal. 3861 counts seconds with mechanical precision. The Apple Watch monitors your health, connects your communications, and maps your movement. Smartlet places both on one wrist without asking you to choose.

Specifications

Is the Omega Speedmaster compatible with Smartlet One?

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 349 EUR
Watch integrity
Zero contact with case
Spring-bar slots only, fully reversible
Questions

Common questions about wearing an Omega Speedmaster and Apple Watch together

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.

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