MoonSwatch Strap Guide: Every Model Uses a 20 mm Lug Width

Short answer: the Omega × Swatch MoonSwatch has a 42 mm Bioceramic case with a 20 mm lug width and a 47.3 mm lug-to-lug length, so any well-made 20 mm strap will fit. A curved-end strap shaped to the case closes the gap at the lugs for a cleaner, integrated look.
MoonSwatch case specs
| Spec | MoonSwatch |
|---|---|
| Case diameter | 42.0 mm |
| Lug width | 20 mm |
| Lug-to-lug | 47.3 mm |
| Case material | Bioceramic |
| Strap fitting | Spring bars |
Specs from Swatch's official product pages. Thickness varies slightly by model.
Straps compatible with each MoonSwatch
All Lugline MoonSwatch straps are FKM rubber, 20 mm, priced at $47.
| MoonSwatch model | Lugline strap |
|---|---|
| Mission to the Moon | Color-matched strap |
| Mission to Mercury | Color-matched strap |
| Mission to Venus | Color-matched strap |
| Mission to Mars | Color-matched strap |
| Mission to Jupiter | Color-matched strap |
| Mission to Saturn | Color-matched strap |
| Mission to Uranus | Color-matched strap |
| Mission to Neptune | Color-matched strap |
| Mission to Pluto | Color-matched strap |
| Mission to the Sun | Color-matched strap |
| Mission on Earth | Color-matched strap |
| MoonSwatch 1965 | Color-matched strap |
| Mission to Earthphase | Color-matched strap |
| Mission to the Moonphase | Color-matched strap |
Prefer a neutral look? Try the curved black strap or browse all straps compatible with the MoonSwatch.
Changing the strap
Swatch fits the MoonSwatch with spring bars, so you can change the strap at home with a spring bar tool in a few minutes. Follow our step-by-step MoonSwatch strap guide.
FAQ
What size strap does a MoonSwatch take?
20 mm. Every MoonSwatch shares the same 42 mm case and 20 mm lug width.
Does a MoonSwatch strap fit an Omega Speedmaster Professional?
The current Speedmaster Professional also has a 20 mm lug width, so 20 mm straps fit both, but a curved-end strap shaped for one case may not sit perfectly flush on the other.
Is FKM rubber good for a MoonSwatch?
Yes. FKM is soft, sweat- and UV-resistant and does not pick up odors, which suits a watch worn every day.
Do I need special spring bars?
Standard 20 mm spring bars work. Our straps come with spring bars in the box.
Are Lugline straps official MoonSwatch accessories?
No. Lugline is an independent brand; the names describe compatibility only.
Lugline is an independent strap maker. Brand and model names are used only to describe compatibility; Lugline is not affiliated with, endorsed by or sponsored by Rolex, Omega, Swatch, Tudor or any other watch brand. Watch not included.