Strap for Senator Excellence Red Gold / Silver / Alligator / Pin

The lug width is 20mm. This parameter corresponds to the distance between the inside of the upper attachment and the inside of the lower attachment of the case. The 20mm width is calibrated to the proportions of the 40mm case and maintains the aesthetic balance characteristic of the Senator. Do not confuse with case diameter: the lug width is the area that wraps around the wrist, and on this model it must necessarily be 20mm for construction and visual compatibility.

Alligator in cognac brown or black represents the conservative solution: the pronounced grain favours secure attachment to the lugs and controlled lustre harmonises beautifully with rose gold. For those preferring an evolving patina, vegetable-tanned calf in honey or natural tones develops a chromatically rich range over time that mirrors the ageing of the metal. Shell cordovan in firefly colour (deep burgundy with violet undertones) instead creates a visual alchemy of rare sophistication. For conscious sport options, cotton canvas NATO maintains elegance and daily versatility.

Changing the strap on a watch of this calibre requires precise tools: a stainless steel spring bar tool and a protected working surface. Work from one end at a time, applying gentle and steady pressure on the lever until the internal spring disengages. Extract the vertical bar with a fluid movement, not abruptly. When installing the new strap, verify that the springs engage symmetrically into the attachments and that the bar is fully seated. An operation of just minutes if conducted with care; haste is the enemy of steel and gold coating.

Yes. Milano Straps offers bespoke leather straps in 20mm size, built according to your watch's specifications. The artisanal nature of the strap allows adjustment of the keeper prominence, buckle design and lug curve based on the case geometry. A custom strap guarantees absence of anomalous protrusions, optimal adherence and complete respect for original proportions. Consult the Casati Milano atelier for personalised advice.

A quality leather strap (alligator, vegetable-tanned calf or shell cordovan) subjected to regular moderate use maintains structural integrity and mechanical function for 18–36 months before a replacement is recommended. Visible wear depends on external factors: humidity exposure, frequency of use, periodic care. Vegetable-tanned calf tends to develop a captivating patina even beyond 3 years, though with progressively increasing rigidity. Alligator resists mechanical wear better but loses lustre more rapidly. Rotating between two straps (one formal, one everyday) significantly extends overall durability.