Tissot · PRX

Strap for PRX Quartz 25 Yellow Gold / Champagne

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
ReferenceT137.010.33.021.00
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 T137.010.33.021.00, seen from the bench

The Tissot PRX T137.010.33.021.00 features a 25 mm stainless steel case with geometric squared shoulders and integrated satin-polished bracelet, drawing inspiration from 1970s heritage through structural reinterpretation. Powered by the reliable ETA F03.105 quartz movement, this unisex or slim-wrist model combines Swiss manufacturing precision with contemporary angular design language. Lug width is 8 mm.

Frequently asked questions

What is the exact lug width of the Tissot PRX T137.010.33.021.00?

The lug width of the Tissot PRX T137.010.33.021.00 is exactly 8 millimetres. This measurement represents the space between the two watch lugs, measured from inner edge to inner edge. This is a precise specification with no tolerance, so any aftermarket strap must strictly respect this width to ensure a correct fit without play or binding.

Which strap is best suited for the Tissot PRX T137.010.33.021.00?

For the Tissot PRX T137.010.33.021.00, we recommend vegetable-tanned leather straps (alligator or calf) for formal contexts, or NATO canvas straps for a sporty, contemporary aesthetic. Alligator in fine grain with dark tones (black, burgundy) dialogues beautifully with the casing's modern geometry, while rubber or elastomer materials maintain linear purity and add wrist comfort. Avoid excessively thick straps that would disrupt the visual balance of the compact case.

How do I change the strap on my Tissot PRX T137.010.33.021.00?

The Tissot PRX T137.010.33.021.00 features standard lugs without fixed loops. To change the strap, use a spring bar tool to extract the metal bar (spring bar) from the side gaps of the lugs. Once extracted, the old strap comes away easily. Insert the new strap and reinsert the spring bar with gentle pressure until you feel a click. This operation is not recommended for inexperienced users; Casati Milano offers a professional change service by appointment.

Can I use an aftermarket strap with my Tissot PRX T137.010.33.021.00?

Yes, you can use aftermarket straps provided they respect exactly the 8-millimetre lug width specification. Any strap in leather, rubber, fabric or similar material with 8mm lug width will be compatible. Milano Straps offers a complete selection of handcrafted 8mm straps in vegetable-tanned leather, alligator, shell cordovan and technical materials, all tested for compatibility and construction quality.

How long does a leather strap last on the Tissot PRX T137.010.33.021.00?

The lifespan of a leather strap depends on usage, climate and material quality. A high-quality vegetable-tanned leather strap with natural treatment offers a useful life of 2–4 years with moderate daily wear. Shell cordovan straps last longer (4–7 years) thanks to the natural density of the fibre. To extend strap life, rotate between multiple options, avoid prolonged moisture exposure and apply natural conditioners every 6–12 months. Milano Straps offers regeneration and restoration services.

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