Tissot · PR 100
Strap for PR 100 34 Stainless Steel - Yellow Gold / Silver
Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the PR 100 T150.210.21.031.00
Selected for the 16 mm lug width
The PR 100 T150.210.21.031.00, seen from the bench
Frequently asked questions
What is the lug width of the Tissot PR 100 T150.210.21.031.00?
The Tissot PR 100 T150.210.21.031.00 features a lug width of 16mm. This measurement represents the internal distance between the case lugs and determines which straps can be installed securely and proportionally. To verify this measurement accurately, use a digital calliper positioned inside the lugs, excluding the outer metal shoulders.
What is the best strap for the Tissot PR 100 T150.210.21.031.00?
The choice depends on intended use and aesthetic preference. For formal contexts, we recommend alligator or shell cordovan with vegetable tanning: they develop a noble patina over time and exude discreet elegance. Vegetable-tanned calf is versatile and robust. For sports or casual applications, grosgrain NATO or satin rubber maintain the model's functional spirit. The brushed steel case naturally accommodates neutral tones: cognac brown, black, dark blue, or burgundy.
How do I change the strap on my Tissot PR 100?
Strap replacement on the PR 100 is performed via spring bars (metal rods) passing through the case lugs. Procedure: place the watch on a soft surface; locate the spring bars at 9 and 3 o'clock; use a specialised tool (spring bar remover) or small flat screwdriver to gently push the bar hook downwards; once released, remove the old strap; align the new strap and reinsert the spring bar, ensuring it clicks securely into both lugs. If unfamiliar with the process, consult a professional watchmaker.
Is a 16mm aftermarket strap compatible with the Tissot PR 100 T150.210.21.031.00?
Yes, any strap with a 16mm lug width is compatible with the Tissot PR 100 T150.210.21.031.00. Artisanal leather straps (vegetable-tanned calf), NATO straps in polyamide, and sport rubber are entirely interchangeable, provided they feature the correct lug width. Many high-end manufacturers produce aftermarket straps specifically sized for 16mm, offering a broad range of materials and finishes. Always verify the lug width before purchase.
How long does a leather strap last on a watch like the Tissot PR 100?
Leather strap longevity depends on material, wear and environmental conditions. An alligator or shell cordovan strap with vegetable tanning, worn moderately on a 34mm watch with light load, typically lasts 5-7 years before replacement is necessary. Vegetable-tanned calf exhibits similar durability but wears faster if frequently exposed to humidity or perspiration. NATO and rubber straps, being synthetic, enjoy longer life (8-10 years) but may lose elasticity over time. To extend strap life, remove the watch during sleep and strenuous activity, and allow the strap to air-dry if wet.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

