Technical Archive

Tissot
PRX T931.207.41.031.01— lug 11mm

Tissot PRX T931.207.41.031.01: 11mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

PRX 35 Powermatic 80 Stainless Steel - Yellow Gold / Silver

Artisanal Note

"This model requires a precise 11mm lug width to preserve the original sartorial balance."

Lug Width

11 mm

The essential strap measurement.

Browse 11mm straps →

Reference

T931.207.41.031.01

Movement

ETA caliber C07.111 Hours, Minutes, Seconds | Date

The Heritage

The Tissot PRX features the ETA C07.111 quartz caliber with indication of hours, minutes, seconds and date. The case features 11mm lug width for the strap. The model belongs to the Tissot Swiss brand's PRX collection.

FAQ

What is the lug width of the Tissot PRX T931.207.41.031.01?

The lug width of the Tissot PRX T931.207.41.031.01 is 11 millimetres. This measurement represents the horizontal distance between the two strap attachment lugs, measured from the inside of the spring bar to the inside of the opposite spring bar. Precise verification of this specification is essential before ordering an aftermarket strap, as even a 1 millimetre deviation would result in incompatibility.

Which strap is recommended for the Tissot PRX T931.207.41.031.01?

For the T931.207.41.031.01, the choice depends on usage and personal aesthetics. An alligator strap in jet black enhances the sophistication of the two-tone case (yellow gold and stainless steel); vegetable-tanned calf develops patina over time and offers versatility; a NATO in neutral tones (slate grey, blue, black) amplifies the sporty character; technical rubber with structured grip provides visual stability without natural material variability. Personalisation through Atelier Casati Milano allows identification of the most harmonious solution with your style.

How do you change the strap on a Tissot PRX?

Changing the Tissot PRX strap requires a spring bar tool. Locate the attachment lugs on either side of the case. Insert the tool into the small holes and apply gentle downward pressure to release the spring bar mechanism. Remove the bar, take off the old strap, and insert the new one. Ensure the new strap has an 11 millimetre lug width and that the spring bars seat perfectly into the case lugs.

Is the Tissot PRX T931.207.41.031.01 compatible with aftermarket 11mm straps?

Yes, the T931.207.41.031.01 is fully compatible with any aftermarket strap featuring an 11 millimetre lug width, regardless of material—alligator, calf, NATO, rubber, or shell cordovan. The 11mm specification is a deliberate construction standard of the PRX collection, meaning the artisanal strap-making community offers extensive options for this watch. Milano Straps maintains a specialised collection of 11mm straps tailored to your Tissot.

How long does a leather strap last on a Tissot PRX?

Strap longevity depends on material composition and intensity of wear. A vegetable-tanned calf strap, subjected to moderate daily use, retains structural integrity for 3–4 years before exhibiting edge deterioration. Alligator, being more resilient, endures 5–6 years. Technical rubber and NATO straps offer superior durability, lasting 7–8 years. The patina that leather develops over time is intrinsic to its nature—not degradation, but authenticated testimony of your relationship with the timepiece.