Strap for Chronoris

The lug width of the Oris Chronoris 01 672 7564 4154-Set is precisely 20mm. This measurement represents the internal distance between the two vertical lugs that attach the strap to the case. Verifying this dimension is essential when purchasing an aftermarket strap to ensure a perfect fit without lateral play or forcing the case geometry.

We recommend genuine alligator leather with vegetable tanning, which accentuates the sport-classic design. Excellent alternatives include shell cordovan that develops appealing patina over time, or Italian calf leather for quality-to-price balance. For summer daily use or outdoor activities, a NATO strap in brown or grey tone offers practicality whilst maintaining the instrument character of the timepiece.

Remove the original strap using a spring bar tool inserted into the lateral hole of the spring pin. Apply gentle inward pressure while extracting the pin. Position the new 20mm strap aligning the holes with the pins and verify both fastening elements lock completely. The procedure takes 2-3 minutes and requires no technical expertise if executed with care.

Yes, provided the lug width is exactly 20mm. Quality aftermarket artisan straps often offer superior construction and materials compared to the original strap. Verify the strap features correct tanning (vegetable preferred) and that lugs are finished to avoid scratching the steel case during insertion. We recommend purchasing from specialised manufacturers that guarantee precise tolerances.

A quality leather strap with vegetable tanning has an estimated lifespan of 3 to 5 years with daily use, varying based on humidity and perspiration exposure. Shell cordovan ages more slowly and can reach 7-8 years. Alligator with vegetable tanning offers intermediate resistance. Lifespan increases significantly if the strap is removed at night and exposed to natural drying cycles. Once exhausted, the strap can be replaced in minutes without case intervention.