Sinn · Instrument Chronographs

Strap for Duochronograph 757 UTC

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
Reference757.011
FamilyInstrument Chronographs
MovementETA caliber 7754 Additional 24 Hour Hand (adjustable), Hours, Minutes, Small Seconds | Date | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Instrument Chronographs 757.011

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Instrument Chronographs 757.011, seen from the bench

The Sinn 757.011 belongs to the Instrument Chronographs collection and features the ETA 7754 caliber with chronograph functions and adjustable 24-hour display. The watch has hours, minutes, small seconds, date and chronograph, with an additional 24-hour hand. The case is equipped with 22mm lugs.

Frequently asked questions

What is the lug width of the Sinn 757.011?

The Sinn 757.011 features a lug width of 22mm. This width is specific to the 43mm case and is measured as the distance between the spring bar attachment points. It is essential to verify this exact measurement before purchasing a compatible strap.

Which strap is best suited for the Sinn 757.011?

For the Sinn 757.011, we recommend straps in vegetable-tanned Tuscan leather (tobacco brown or black), dark-tinted alligator, or museum-grade shell cordovan. These materials accentuate the instrument character of the watch. For tactical use, high-density nylon NATO straps maintain operational practicality. FKM rubber straps are ideal for aquatic operations.

How do I change the strap on my Sinn 757.011?

The process is straightforward: insert a spring bar removal tool (included with our straps) into the lateral slot of the lug, gently push to release the spring, extract the old strap. Insert the new strap into the attachments, press the spring bar until you hear a safety click. No specialized tools are required.

Are Milano Straps compatible with the Sinn 757.011?

Yes, all straps in the 22mm collection from Milano Straps are compatible with the 757.011. We offer Italian leather, alligator, shell cordovan, NATO, and FKM rubber, each tested for safety and perfect adherence to the case without unnatural angles.

How long does a leather strap last on the Sinn 757.011?

A leather strap of quality, vegetable-tanned, has an average lifespan of 3 to 5 years with regular use and proper maintenance. Exposure to sunlight, sweat, and humidity accelerates aging. The patina that develops is natural and desirable. We recommend monthly cleaning with a damp cloth and annual conditioning with leather-specific creams.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only