Archimede · Klassik

Strap for Archimede Klassik UA7939BM-C2.41

The Klassik Chronograph Stainless Steel / Silver / Bracelet takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width20 mm
Case diameter42 mm
ReferenceUA7939BM-C2.41
FamilyKlassik
MovementETA caliber 7750 hours, minutes, small seconds | date, day | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Standard spring bar · length 20 mm · Ø 1.8 mm double flange · industry standard, no brand part number

Klassik Chronograph Stainless Steel / Silver / Bracelet — watch

What I'm asked about the Archimede Klassik UA7939BM-C2.41

What strap size does the Archimede Klassik UA7939BM-C2.41 take?

The Archimede Klassik UA7939BM-C2.41 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 Archimede Klassik UA7939BM-C2.41 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 Archimede Klassik UA7939BM-C2.41?

Yes, in 20 mm leather. On a 42 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the Archimede Klassik UA7939BM-C2.41?

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.

Frequently asked questions

Where can I find 20 mm straps for the Archimede Klassik Chronograph UA7939BM-C2.41?

You can find them in the 20 mm strap collection at Milano Straps.

Can I replace the original metal bracelet on the Archimede UA7939BM-C2.41 with a strap?

Yes. The original bracelet is metal and the lug width is 20 mm: any 20 mm strap with standard spring bar attachment is compatible.

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

Updated on · by Antonio Zichichi