Omega · Speedmaster (Non-Moonwatch)
Strap for Omega Speedmaster (Non-Moonwatch) ST 186.004 Alaska
The Speedmaster Professional Moonwatch Alaska Project IV takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Recommended spring bar
Your watch with our straps
Calf, Orange
Grand Cavalier Leather Strap Orange
€120
★ 4.9 · 12
1 / 83
Real photos of the strap and the case. No generated images.
What I'm asked about the Omega Speedmaster (Non-Moonwatch) ST 186.004 Alaska
What strap size does the Omega Speedmaster (Non-Moonwatch) ST 186.004 Alaska take?
The Omega Speedmaster (Non-Moonwatch) ST 186.004 Alaska needs 20 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.
Can the strap on the Omega Speedmaster (Non-Moonwatch) ST 186.004 Alaska be changed?
Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.
Can I put a leather strap on the Omega Speedmaster (Non-Moonwatch) ST 186.004 Alaska?
Yes, in 20 mm leather. On a 38 mm chronograph I like box calf: it holds its shape and carries a substantial case.
Which strap do you recommend for the Omega Speedmaster (Non-Moonwatch) ST 186.004 Alaska?
A 20 mm box calf. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Speedmaster (Non-Moonwatch)
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- Speedmaster Moonphase Chronograph Master Chronometer Stainless Steel / Black / Bracelet21 mm
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- Speedmaster Moonphase Chronograph Master Chronometer Stainless Steel / Black21 mm
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More Omega in 20 mm
- Omega Speedmaster Professional 105.012 (anse a lira asimmetriche)Speedmaster
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- Constellation Quartz 25.5 Stainless Steel / Diamond / MOP / 160 YearsConstellation
- Constellation Automatic 36 Stainless Steel / Red Gold / Beijing Olympics 2008Constellation
- Constellation Co-Axial 35.5 Stainless Steel / Yellow Gold / Champagne / 160 YearsConstellation
- Constellation Quartz 22.5 Stainless Steel / Red Gold / Diamond / MOP / 160 YearsConstellation
For changing the strap
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
The atelier's website: casatimilano.com