Strap for Senator Perpetual Calendar Stainless Steel / Silver / Synthetic - Folding

The lug width is 20mm. This measurement corresponds to the distance between the case lugs where the strap attaches. To verify it, measure the free space between the two spring bar pins: 20mm is the correct specification for this model.

It depends on usage and personal preference. Crocodile alligator leather is the premium choice: its natural scaled texture dialogues elegantly with the watch's minimalist dial design. Vegetable-tanned calf develops a rich patina over time, creating aesthetic continuity with the stainless steel case. Shell cordovan transmits structural solidity and natural polish. Vulcanised rubber is ideal for daily wear. All these materials respect the technical calibre of the 36-02 movement.

The strap is secured using two spring bars (spring-loaded pins) positioned on the case lugs. Using a spring bar tool, gently compress the pin on one side, sliding the old strap outward. Position the new strap on one end, release the pin which will automatically engage. Repeat on the other side. Avoid excessive stress: the stainless steel case must not be scratched.

Yes, provided it is manufactured for a 20mm lug width. High-quality artisanal straps—in alligator, calf, shell cordovan or rubber—are compatible with the Senator 1-36-02-01-02-64. Ensure the case lugs are not detached or damaged, and that the spring bars function correctly. Many ateliers customise the strap length to fit your wrist.

Durability depends on the tanning method, usage, and environmental conditions. Vegetable-tanned calf typically lasts 3-5 years in daily use. Alligator, denser and more structured, often lasts 5-7 years or more. Shell cordovan, owing to its natural density, frequently reaches 7-10 years. Vulcanised rubber resists 4-6 years. Factors such as humidity, heat, aggressive detergents, and cleaning frequency significantly influence longevity. A well-maintained strap can be restored by a craftsman, extending its useful life.