Spring bars Omega 20mm — 1.8mm diameter
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€12,95
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Handcrafted Straps
Spring bars Omega 20mm — 1.8mm diameter
€12,95
Set of two Omega spring bars, 20mm lug width, in hardened Swiss Standard steel. Pin diameter: 1.8mm. Correct size for Speedmaster Professional, Seamaster 300M (drilled and closed lugs), Aqua Terra 38, recent Railmaster.
On the Speedmaster Pro, the 20mm with 1.8mm pin has been the factory specification for decades. The Moon case is tight on the lugs: with an undersized pin, the strap shifts by a millimetre with every movement. It doesn’t break, but you feel it. And a strap you feel is a strap made badly.
I fit them on the Speedmaster leather straps every time I stitch one. It is the standard size for the most widespread wrist in the world.
Secure checkout · We accept
Free shipping Italy
24/48h delivery
30-day return
Free from Italy only
Atelier since 1984
Milan
Swiss Standard steel
316L · 10,000 cycles
SKU: MS-IT-MS-OMSB-NV-1820
Worldwide shipping
I prepare and ship your order within 1–3 business days of payment. Delivery takes 1–3 business days in Italy, 3–7 in the European Union, 5–10 in the United States and Canada, and 7–15 to the rest of the world. Every parcel is tracked.
Returns and exchanges
You have 30 days from delivery to request a return or an exchange. The strap must come back as you received it: unworn, in its packaging. Write to info@milanostraps.it with your order number; once the return is accepted, I will send you the return shipping label. Made-to-measure straps cannot be returned: they are cut for your watch. Full conditions.
You can also find it in
Compatibile con
Orologi compatibili
The joy of little things
Changing your strap should be as simple as changing your shoes. With us, it is.
Every strap has integrated quick-release spring bars: swap it in one gesture, no tools, no risk of scratching the lugs. The same watch shifts mood with the moment.
Frequently asked questions
Am I sure that 1.8mm is the right thickness for my Speedmaster Pro?
Yes, it is the Omega factory specification that has been in place for decades. If you use a thinner pin, the strap moves by about one millimetre with every movement of the wrist — it does not break, but you can feel it. With 1.8mm, everything fits perfectly within the narrow lugs of the Moon case.
Do they also work well on a Seamaster 300M with blind lugs?
Yes, they work with both drilled and non-drilled lugs on the 300M. Just check that the lugs have a width of 20mm between the loading points — on some vintage models it might be slightly different.
How do I avoid damaging them during installation?
Use a two-pronged tool (a classic spring bar tool). Press both lateral balls at the same time with a firm, smooth movement, not a jerk. The Swiss Standard tempered steel is robust, but it is not indestructible if you use the wrong tool.
How long do they last before losing elasticity?
With normal use, 5-10 years at least. Tempered steel retains the spring's memory. If you fit and remove them frequently with broken tools, their lifespan drops. If you leave them fitted and don't mistreat them, they last a lifetime.