Strap for DTE

The lug width (ansa width) of the 1DTAR.L01A.C120A model is 20 millimetres. This dimension is measured between the two attachment points on the case and represents the standard of compatibility for all dedicated straps. A 20mm lug width provides visual balance with the 43.5mm case, avoiding both disproportionateness and excessive rigidity of the strap.

For a timepiece of this calibre, vegetable-tanned alligator represents the most coherent choice: its natural texture with characteristic rings dialogues perfectly with the constructive rigour of the tourbillon movement. Colours such as havana or dark tobacco amplify chromatic harmony with the rose gold. Alternatively, supple calf leather in bordeaux or a dark anthracite FKM rubber strap offer versatility without aesthetic compromise.

Strap replacement occurs via the spring bar attachments on the case. Using a dedicated tool (spring bar tool), one applies pressure to deactivate the spring bar, remove the old strap and insert the new one. Given the value of the rose gold case, it is advisable to operate with care to avoid micro-scratches. Should you require assistance, the Atelier Casati Milano offers strap-change services by appointment.

Yes, all straps with a 20mm lug width are compatible with the 1DTAR.L01A.C120A. Milano Straps offers a dedicated selection of straps in alligator, calf, NATO and rubber in 20mm size, selected for aesthetic harmony with the Instrument Collection design. Each strap is checked to ensure precise tolerances and mechanical resilience.

A high-quality leather strap (alligator or calf) typically lasts 5–7 years with daily wear, developing a noble patina over time. Durability depends on maintenance, sun exposure and humidity. A rubber or NATO strap resists 8–10 years. Periodic strap replacement is recommended to maintain wrist hygiene and to explore seasonal colour pairings without compromise.