Rolex GMT-Master II & Apple Watch on the same wrist

Rolex GMT-Master II & Apple Watch on the same wrist

Yes. The Rolex GMT-Master II is compatible with Smartlet One. All current references (Batman, Pepsi, Root Beer) use a 20mm lug width supported by Smartlet. The Apple Watch sits underneath the wrist, in the central part of the bracelet. Both watches run simultaneously with no modification to either piece.
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Compatibility guide

Rolex GMT-Master II & Apple Watch on the same wrist

Rolex GMT-Master II + Apple Watch
Yes. The Rolex GMT-Master II is compatible with Smartlet One. All current references (Batman, Pepsi, Root Beer) use a 20mm lug width supported by Smartlet. The Apple Watch sits underneath the wrist, in the central part of the bracelet. Both watches run simultaneously with no modification to either piece.
GMT-Master II lug width
20mm
Apple Watch series
All Series 4 and above
Smartlet model
Classic, Shadow or Titanium
Setup time
Under 2 minutes

Why GMT-Master II owners wear Apple Watch too

Is the Rolex GMT-Master II compatible with Smartlet One?

Compatible
Yes. The Rolex GMT-Master II is compatible with Smartlet One. All current references (Batman, Pepsi, Root Beer) use a 20mm lug width supported by Smartlet. The Apple Watch sits underneath the wrist, in the central part of the bracelet. Both watches run simultaneously with no modification to either piece.
GMT-Master II lug width
20mm Supported
126710BLNR, 126710BLRO, 126711CHNR, 126719BLRO
Apple Watch models
All Series 4 and above
Series 12, Ultra 4, SE, all sizes
Smartlet model
Classic, Shadow or Titanium
From 299 EUR
Daily wear profile
9-12mm underneath the wrist
Sized to the wrist by its links

Related compatibility guides

Model guide
Rolex GMT-Master II
→
Brand guide
All Rolex models
→
Smartwatch guide
Apple Watch compatibility
→

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Choose your Smartlet

Step by step

Replace your strap
01

Replace your strap

The watch adapters seat in your mechanical watch's lug holes in place of the spring bars. Classic, Shadow or Titanium. The spring bar tool is in the box.

Connect your wearable
02

Connect your wearable

Your smartwatch attaches to the central part of the bracelet with its own adapter (Apple Watch, Whoop, Fitbit, Galaxy or Pixel Watch) or a pair of standard watch adapters. Zero modification to the mechanical watch.

Wear both simultaneously
03

Wear both simultaneously

Both watches sit on the same wrist. The smartwatch sits underneath, against the skin.

Questions

Frequently asked questions

  • Which GMT-Master II references work with Smartlet?
    All current GMT-Master II references are compatible: 126710BLNR (Batman), 126710BLRO (Pepsi), 126711CHNR (Root Beer), 126719BLRO (Pepsi White Gold), and 126715CHNR (Root Beer Everose). All use 20mm lugs, supported by Smartlet One with 20mm watch adapters.
  • Does wearing both affect travel comfort?
    The Smartlet is designed for all-day wear. It adds 9 to 12 mm of height underneath the wrist and is sized to the wrist by its links.
  • Can I use Apple Watch world clock alongside the GMT complication?
    Yes. The two watches operate entirely independently. You can display different time zones on the Apple Watch face alongside the GMT-Master II's mechanical second time zone, giving you three time zones on one wrist if needed.
  • Does Smartlet damage or modify my mechanical watch?
    No. The watch adapters seat in your watch's lug holes in place of the spring bars. Nothing is modified on the case, lugs or dial, and the change is fully reversible: your mechanical watch can go back on its original strap at any time.