Strap for Senator Cosmopolite White Gold / Rainbow / Alligator / Folding

The lug width is 21.00mm, measured internally between the two spring bars. This dimension is specific to the model and ensures balanced optical proportions on the 44mm case. Verify compatibility with a millimetre calliper positioned perpendicularly across the lug, from internal edge to internal edge.

The choice depends on intended use. For formal elegance, we recommend black alligator with a steel or white gold deployante. For developing a natural patina over time, shell cordovan horse leather offers chromatic stratification coherent with white gold ageing. Vegetable-tanned calf leather permits chromatic customisation (tamarind brown, midnight blue) whilst maintaining Saxon sobriety.

Position the watch on a soft cushion with the case facing downward. Locate the elastic spring bars (small projections at the lug extremities). Use a dedicated spring bar removal tool or a blunt rod to gently push the bar toward the case centre until released. Remove the old strap, align the new strap holes with the lugs, and push the spring bar into position until it locks.

Yes. Aftermarket straps at 21mm are fully compatible provided they are constructed to correct metrological precision (±0.5mm tolerance on lug width). Verify that the strap is realised in noble fibres (alligator, shell cordovan, vegetable-tanned calf) for aesthetic coherence with the white gold case and the complexity of the calibre 89-02.

A noble leather strap (alligator, shell cordovan, vegetable-tanned calf) with moderate use lasts 4-7 years before replacement becomes necessary. Lifespan depends on frequency of use, exposure to moisture and climatic variation, and the quality of tanning. Vegan alligator tends to last less (2-3 years) than natural vegetable-tanned fibres. Periodic maintenance (gentle cleaning, rapid drying after water contact) substantially extends useful life.