Quick release curved spring bars 1.8mm — curved lugs
16mm
€17,00
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Handcrafted Straps
Quick release curved spring bars 1.8mm — curved lugs
€17,00
Set of two quick release spring bars with curved profile, in hardened Swiss Standard steel. Pin diameter: 1.8mm. The curvature follows the lugs of watches with a domed caseback — Speedmaster Professional, Seamaster 300, vintage 1960s cases in general. The integrated lever allows strap changes without a spring bar tool.
Straight spring bars on curved lugs always create a small gap between strap and case. On a flat watch it goes unnoticed. On a Speedmaster it doesn’t: the strap appears to float. The curved profile eliminates the problem and makes the leather sit flush against the case as it should.
I have seen them make the difference on a Speedmaster Moonwatch fitted with a custom Casati. They are worth the difference.
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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-USB-CQR-16
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.
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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
Which lug widths do these curved spring bars fit?
They are universal: the pin diameter is 1.8mm, so they fit any lug width provided the lugs have standard 1.8mm holes. The curvature is designed for the domed lugs typical of Speedmaster and Seamaster 300 models, but they work on any watch with a curved case back — vintage or modern.
What is the real difference between these and a straight spring bar on a curved lug?
The straight spring bar creates a gap between the strap and the case because the linear profile doesn't follow the curved geometry of the lug. On a Speedmaster the strap visibly floats and doesn't sit flush. Our curved bar eliminates the gap: the strap touches the case along the whole lug, as it should be.
Can I use them on a watch with flat lugs?
Technically yes, the pin is a standard 1.8mm. But the curved profile on a flat lug leaves gaps between the bar and the hole — it is not a functional problem, just less tidy aesthetically. If your lugs are flat, a straight bar is the better choice.
Are they really quick release? How does the lever work?
Yes, built into the spring bar itself. Press the small lateral lever towards the centre of the watch and the pin releases — you change the strap without a fork. It's a reliable system, quicker than with the tool, but it takes a bit of practice the first few times.