Omega · Speedmaster (Non-Moonwatch)
Strap for Omega Speedmaster (Non-Moonwatch) 3840.30.32
The Speedmaster Split-Seconds Stainless Steel / Silver / Strap takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
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- Ships in 1–3 working days
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- 12-month warranty on manufacturing defects
- Hand-stitched in Milan
Lug width

Your watch with our straps









Calf, Orange
Grand Cavalier Leather Strap Orange
€120
★ 4.9 · 12
1 / 86
Real photos of the strap and the case. No generated images.
What length do I need?
Measure your wrist with a tailor's tape or a piece of string, comfortably snug.
| Wrist circumference | Length (long side / short side) |
|---|---|
| 15.0–16.4 cm | 120 / 70 mm |
| 16.5–17.8 cm | 125 / 75 mm |
| 17.9–19.0 cm | 130 / 80 mm |
| 19.1–20.3 cm | 135 / 85 mm |
| 20.4–21.6 cm | 140 / 85 mm |
| 21.7–22.9 cm | 145 / 90 mm |
The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.
What I'm asked about the Omega Speedmaster (Non-Moonwatch) 3840.30.32
What strap size does the Omega Speedmaster (Non-Moonwatch) 3840.30.32 take?
The Omega Speedmaster (Non-Moonwatch) 3840.30.32 needs 20 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Omega Speedmaster (Non-Moonwatch) 3840.30.32 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) 3840.30.32?
Yes, in 20 mm leather. On a 43 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) 3840.30.32?
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)
- Speedmaster Moonphase Chronograph Master Chronometer Stainless Steel / Yellow Gold / Silver21 mm
- Speedmaster Moonphase Chronograph Master Chronometer Stainless Steel / Sedna Gold / Brown21 mm
- Speedmaster Moonphase Stainless Steel / Black Meteorite / Bracelet21 mm
- Speedmaster Moonphase Stainless Steel / Silver Meteorite / Bracelet21 mm
- Speedmaster Moonphase Chronograph Master Chronometer Stainless Steel / Black / Bracelet21 mm
- Speedmaster Moonwatch Master Co-Axial Stainless Steel / Racing21 mm
- Speedmaster Moonphase Chronograph Master Chronometer Stainless Steel / Black21 mm
- Speedmaster Moonphase Chronograph Master Chronometer Stainless Steel / Blue / Alligator21 mm
All Speedmaster (Non-Moonwatch) → Omega families →
Every Speedmaster (Non-Moonwatch) reference with its measured lug width, on watchbands.ai →
More Omega in 20 mm
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

