Omega Speedmaster Strap Guide: Rubber Straps for the Moonwatch
Short answer: the current Omega Speedmaster Moonwatch Professional (42 mm, for example ref. 310.30.42.50.01.001 with caliber 3861) has a 20 mm lug width and a 47.5 mm lug-to-lug length, according to Omega's official specs. Choose a 20 mm strap; a curved-end design shaped to the case gives the neatest fit.
Speedmaster Professional specs
| Spec | Moonwatch Professional 42 mm |
|---|---|
| Example reference | 310.30.42.50.01.001 (Hesalite) |
| Case diameter | 42 mm |
| Lug width | 20 mm |
| Lug-to-lug | 47.5 mm |
| Thickness | 13.54 mm |
| Water resistance | 50 m |
Other Speedmaster lines (Racing, '57, Dark Side of the Moon and others) use different cases. Check your reference or measure the lugs before ordering.
Lugline straps compatible with the Speedmaster
- Curved-end FKM strap, $83, 12 colors
- Textured rubber strap, $83
- Strap for Silver Snoopy Award editions, $83
- 1.8 mm spring bars, $15
Browse all Omega-compatible straps or the 20 mm collection.
Why rubber on a Speedmaster?
Rubber is lighter than the bracelet, does not mind water or sweat, and gives the chronograph a sportier look. FKM rubber holds its shape and color well; see rubber vs FKM.
FAQ
What is the lug width of the Omega Speedmaster Professional?
20 mm on the current 42 mm Moonwatch Professional, per Omega.
Will a MoonSwatch strap fit my Speedmaster?
Both use 20 mm, so it will attach, but straps shaped for the Bioceramic MoonSwatch case may leave a small gap on the steel case.
Can I use the Omega bracelet clasp with a rubber strap?
Our Speedmaster straps come with their own buckle, so you can store the bracelet as is.
What spring bars does the Speedmaster use?
Use 20 mm spring bars sized to the lug holes; we offer 1.8 mm bars for the Speedmaster.
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.