Tissot · PRX

Strap for PRX Quartz 25 Stainless Steel / Black - Diamond

Takes 8 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width8 mm
Case diameter25 mm
ReferenceT137.010.11.056.00
FamilyPRX
MovementETA caliber F03.105 Hours, Minutes, Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The PRX T137.010.11.056.00, seen from the bench

The Tissot PRX T137.010.11.056.00 is a contemporary reinterpretation of the sportive-elegant DNA from the 1970s, featuring a 25mm integrated stainless steel case with satin and polished finishing. It houses an ETA caliber F03.105 quartz movement and is part of the PRX collection launched in 2022. The watch features an 8mm lug width, specific to the PRX 25mm line, and is paired with the original flat-link integrated bracelet that emphasizes the geometric proportions of the case.

Frequently asked questions

What is the correct lug width for the Tissot PRX T137.010.11.056.00?

The lug width of the Tissot PRX T137.010.11.056.00 is 8 millimetres. This measurement, specific to the 25mm PRX collection, represents the distance between the attachment pins that connect the strap to the case. It is essential to verify this dimension before ordering an aftermarket strap, as an incorrect lug width will not fit properly into the lug slots, compromising both aesthetics and security.

Which type of strap is best suited for the Tissot PRX T137.010.11.056.00?

The Tissot PRX T137.010.11.056.00, thanks to its compact proportions (25mm diameter), works excellently with calfskin leather, shell cordovan, or technical solutions such as NATO or FKM rubber straps. Leather straps with vegetable tanning offer the best aesthetic balance, complementing the satinised steel case whilst developing natural patina over time. For daily or sporting use, a NATO strap provides greater durability and versatility.

How do you change the strap on the Tissot PRX T137.010.11.056.00?

Changing the strap on the Tissot PRX T137.010.11.056.00 requires a specific tool called a spring bar tool, useful for disengaging the elastic pins from the lug slots. Position the watch with the lugs facing outward, gently insert the tool into the lug slot to compress the pin, and carefully remove the old strap. The operation requires steady hands but not excessive force: it is advisable to have a professional perform this if you lack experience.

Is an aftermarket strap truly compatible with the T137.010.11.056.00?

Yes, provided the strap features an exact 8-millimetre lug width. Milanostraps supplies straps specifically dimensioned for this width, guaranteeing constructive and aesthetic compatibility with the 25mm PRX. You can verify compatibility by checking the product technical specifications before purchase. All straps in the 8mm collection have been tested to ensure precise fitting and security in the lug slot.

How long does a leather strap last on a daily-worn watch?

The lifespan of a leather strap depends on material quality, type of tanning, and conditions of use. A good-quality calf leather strap worn daily can last 2-4 years before showing significant signs of wear; a shell cordovan strap, thanks to its superior density and natural resistance, can last 5-8 years. Exposure to humidity, heat, and perspiration accelerates ageing. A vegetable-tanned strap develops natural patina that becomes increasingly beautiful with time, whilst a technical NATO strap can last over 10 years. Regular maintenance (cleaning, drying, occasional conditioning) significantly extends useful life.

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