Technical Archive

Tissot
PRX T137.407.11.351.01— lug 12mm

Tissot PRX T137.407.11.351.01: 12mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

PRX Powermatic 80 Stainless Steel / Ice Blue Gradient

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

T137.407.11.351.01

Movement

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

The Heritage

The Tissot PRX features the ETA C07.111 quartz movement with hours, minutes, seconds and date indication. The case has 12mm lugs and maintains the integrated design characteristic of the collection. The model represents a contemporary reinterpretation of a 1970s timepiece.

FAQ

What is the lug width of the Tissot PRX T137.407.11.351.01?

The lug width of the Tissot PRX T137.407.11.351.01 is 12mm. This measurement is crucial for aftermarket strap and bracelet compatibility. To verify, remove the original bracelet and measure the internal distance between the two lugs at their widest point using a digital calliper.

What is the best strap for the Tissot PRX T137.407.11.351.01?

There is no single 'best' strap, but rather informed choices based on use case. For daily elegance, we recommend alligator or calf leather with vegetable tanning; for sport and water resistance, FKM rubber excels; for aesthetic purism, a grey cotton NATO echoes the original 1970s concept. All are compatible with the 12mm lug width.

How do I change the strap on the Tissot PRX T137.407.11.351.01?

Remove the watch from your wrist. Use a spring bar removal tool to gently extract the elastic pins (spring bars) connecting the bracelet to the lugs. Insert the new 12mm strap through the same pins and ensure both ends are securely anchored to the lugs. Verify stability before wearing.

Is the Tissot PRX T137.407.11.351.01 compatible with third-party 12mm straps?

Yes, completely. Any artisanal or industrial strap supplied with compatible 12mm spring bars will fit the Tissot PRX T137.407.11.351.01. Milano Straps manufactures 12mm straps in leather, rubber, and fabric, all tested for this specific lug width.

How long does a leather strap last on the Tissot PRX T137.407.11.351.01?

Durability depends on material and usage patterns. A high-quality artisanal strap in alligator or vegetable-tanned calf lasts 3–5 years with moderate daily wear. Constant exposure to water, perspiration, and UV radiation reduces lifespan. Milano Straps vegetable-tanned leather straps develop a natural patina that adds character over time, often remaining functional beyond 5 years with proper care.