Strap for Senator Chronograph Panorama Date Stainless Steel / Silver / Calf / Folding

The lug width of the Senator 1-37-01-05-02-55 is 21 millimetres. This measurement must be taken precisely between the internal lug holes of the case without applying excessive force. It is a specific dimension that permits no deviation: a strap destined for this model must fit perfectly without forcing.

Alligator leather from vegetable tannage represents the optimal pairing for the Senator. Crocodilus niloticus confers aesthetic elevation whilst maintaining compatibility with temperate climates. Nubuck calf offers tonal continuity with aged stainless steel. NATO webbing in jacquard fabric provides sporting utility without compromising elegance. High-tech rubber is recommended for humid environments and for those preferring frequent replacements.

Strap replacement requires the use of a dedicated tool (spring bar remover) or a small cross-headed key. Position the watch on a soft surface with the dial facing downward. Locate the lateral lugs (the pins that retain the strap) and apply gentle lateral pressure to free the end of the old strap. Extract the pin, insert the new strap—verifying correct orientation—and ensure that the pin returns to its housing. It is advisable to perform this operation at a watchmaker if uncertain.

Yes, any strap with 21mm lug width is compatible with the Senator 1-37-01-05-02-55. However, constructive integrity demands straps of certified quality: vegetable-tanned leather, robust jacquard textiles, aerospace-grade rubber. Economical straps with synthetic finishes compromise the constructive elegance of the watch. It is advisable to engage specialist artisans in the manufacture of luxury straps to guarantee excellent finishing and durability.

The longevity of a leather strap depends upon frequency of use, climatic conditions and material quality. An alligator from vegetable tannage subjected to daily use maintains structural characteristics for 3–5 years, after which the leather tends to thin. Vegetable-tanned calf resists on average 2–3 years. Shell cordovan, owing to its intrinsic density, can exceed 5–7 years. Periodic maintenance (cleaning, protective treatment with natural waxes) significantly extends durability. It is advisable to maintain spare straps for seasonal rotation.