Technical Archive

Tissot
PRX T137.907.97.201.00— lug 12mm

Tissot PRX T137.907.97.201.00: 12mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Artisanal Note

"This model requires a precise 12mm lug width to preserve the original sartorial balance."

Lug Width

12 mm

The essential strap measurement.

Browse 12mm straps →

Reference

T137.907.97.201.00

Movement

ETA caliber C07.811 Hours, Minutes, Seconds | Date

The Heritage

The Tissot PRX features the ETA C07.811 caliber with hour, minute, second and date indications. The watch has 12mm lugs and maintains the characteristic geometric lines of the collection. The movement offers essential functions in a compact format typical of Tissot's contemporary production.

FAQ

What is the lug width of the Tissot PRX T137.907.97.201.00?

The Tissot PRX T137.907.97.201.00 features a lug width of 12mm, an unusual dimension defined by the integrated case architecture. Correct measurement must be taken from centre to centre of the lug pins using a digital calliper with minimum precision of 0.1mm. This specification necessitates deliberate strap selection, excluding most mass-market universal options.

Which strap is most suitable for the Tissot PRX T137.907.97.201.00?

The ideal strap depends on intended daily usage. For minimalist aesthetics with technical character, we recommend neutral-tone leather or high-tenacity polyester NATO straps. For those preferring reinforced elegance, vegetable-tanned calf leather offers natural patina development over time. For intense water-based activities, FKM fluoroelastomer straps guarantee resistance to moisture, UV rays and body oils whilst maintaining wearing comfort.

How do I change the strap on the Tissot PRX T137.907.97.201.00?

Strap replacement requires a spring bar tool and a soft work surface to protect the case. Position the bifurcated end of the tool beneath the lateral pin, gently lift until the internal spring retracts, then extract the pin. Repeat on the opposite side. Insert the new strap by aligning the holes with the pins, then push until the locking mechanism engages audibly. This operation is recommended for experienced operators to avoid case damage.

Can I fit an aftermarket strap from another brand on the Tissot PRX T137.907.97.201.00?

Yes, provided the strap is specifically constructed for 12mm lug width. Many universal manufacturers do not offer this width; therefore, technical specifications must be verified with precision before purchase. Personalised artisanal straps available online guarantee certified compatibility and adjustment capability.

How long does a leather strap last on the Tissot PRX T137.907.97.201.00?

Leather strap longevity varies according to tanning method and daily usage patterns. Vegetable-tanned leather typically lasts 3-5 years with correct maintenance (monthly cleaning with damp cloth, bi-annual conditioning with natural balm). Tanned calf leather, owing to its fibre density, may reach 5-7 years. Polyester NATO straps have superior durability, 7-10 years, with gradual deterioration of elastomeric finishes. Periodic strap replacement is standard practice in quality horology, an opportunity to alter aesthetics without significant investment.