Tissot · Supersport

Strap for Supersport Chrono Stainless Steel - Yellow Gold / Black / Bracelet

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

Lug width22 mm
Case diameter46 mm
ReferenceT125.617.21.051.00 (aka: T1256172105100)
FamilySupersport
MovementETA caliber G10.212 AB hours, minutes, small seconds | date | Chronograph, Rattrapante
Year2022
CaseAluminium, Stainless 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 Supersport T125.617.21.051.00 (aka: T1256172105100)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Supersport T125.617.21.051.00 (aka: T1256172105100), seen from the bench

The Tissot Supersport reference T125.617.21.051.00 features the ETA G10.212 AB caliber with chronograph and split-second functions. The watch offers hour, minute, small second and date indications. The case has 22mm lugs.

Frequently asked questions

What is the lug width of the Tissot Supersport T125.617.21.051.00?

The lug width (strap width) of the Tissot Supersport T125.617.21.051.00 is 22mm. This measurement represents the distance between the two lugs on the case and is critical for purchasing compatible watch straps. To verify, measure with a digital caliper the internal distance between the two metal protrusions where the strap attaches. There is no margin for error: 22mm is fixed and non-negotiable.

Which watch strap does Milano Straps recommend for the Tissot Supersport Chrono?

For the Tissot Supersport T125.617.21.051.00, we recommend Tuscan leather with vegetable tanning, Moka Brown shade. This material offers natural grip, a patina that evolves with time, and density suitable for active daily wear. Alligator leather is a premium alternative for those seeking exotic texture and inherent brightness. Technical NATO straps in woven material are ideal for summer and water sports. Vulcanised rubber in dark grey is the purely technical choice for triathletes and cyclists.

How do I change the strap on the Tissot Supersport T125.617.21.051.00?

Strap replacement requires no specialised tools. Insert a spring bar tool between the case lug and strap, applying gentle downward pressure to compress the internal spring. The lug releases. Repeat on the opposite side. Insert the new 22mm strap, ensuring the springs engage securely in both metal protrusions. Pull the strap gently to confirm locking. This operation takes approximately 2 minutes and carries no risk of damage if performed carefully.

Are aftermarket straps compatible with the Tissot Supersport T125.617.21.051.00?

Yes, any strap with a 22mm lug width is compatible with the Tissot Supersport T125.617.21.051.00. Compatibility is guaranteed by the standardised lug width. Milan Straps' aftermarket straps—leather, NATO, rubber, alligator—fit perfectly thanks to universal spring bars. The only variable is material and aesthetics: quality and design are personal choice, not technical constraint.

How long does a leather strap last on the Tissot Supersport T125.617.21.051.00?

A vegetable-tanned Tuscan leather strap lasts 4–6 years with daily wear and basic maintenance (gentle drying after perspiration, avoiding prolonged soaking). Alligator leather reaches 7–8 years thanks to superior density. Longevity depends on climate (humidity) and intensity of use. Shell cordovan exceeds 10 years if preserved from extreme moisture. NATO straps in technical fabric last 5–8 years. Vulcanised rubber reaches 8–10 years without deterioration from UV rays or chlorine. Any material can be replaced easily in 2 minutes via detachable lugs.

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