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Sinn · Instrument Watches

Strap for Sinn Instrument Watches 240.010

The Series 240 St takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
22 mm strapsAll Sinn
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Lug width22 mm
Case diameter44 mm
Reference240.010
FamilyInstrument Watches
MovementSellita caliber SW220-1 Hours, Minutes, Seconds | Date, Day
Year2015
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 22 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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Series 240 St — watch

Straps for the Instrument Watches 240.010

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

What I'm asked about the Sinn Instrument Watches 240.010

What strap size does the Sinn Instrument Watches 240.010 take?

The Sinn Instrument Watches 240.010 needs 22 mm between the lugs, usually 18 or 20 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Sinn Instrument Watches 240.010 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 Sinn Instrument Watches 240.010?

Yes, in 22 mm leather. On a 44 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Sinn Instrument Watches 240.010?

A 22 mm calf strap, for every day. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

More Sinn in 22 mm

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare straps→

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