Strap for Classic Date 42 Stainless Steel - Rose Gold / Blue

The lug width (ansa) of this model is 20 millimetres. This measurement is taken from the centre of one lug hole to the centre of the other, perpendicular to the case plane. Any aftermarket strap must present exactly 20mm thickness at the attachment pins to ensure compatibility and uniform wear on the metal seats.

The choice depends on use and season. For formal elegance, vegetable-tanned alligator or pull-up calf leather offer maximum refinement, enhancing the satinised finish of the case. For sporting and daily wear, a NATO strap in Cordura or FKM rubber guarantee water resistance and easy maintenance. It is recommended to have at least two: one in leather for formal occasions and one functional for activity.

The change is a quick operation requiring no specialist tools. Position the watch in a stable support. Use a dedicated spring bar removal tool, inserting the blade underneath the attachment pin from bottom to top to free the tension spring. Pull the pin outward. Repeat on the opposite side. Install the new strap by reversing the procedure: guide the pin into the old strap lug hole, position the retention spring, and push until the locking click.

Yes, if constructed for a 20mm lug width. Compatibility depends exclusively on this measurement and the shape of the pins (spring bar). Custom artisanal straps, such as those from Milano Straps, are built to tolerances of ±0.1mm, guaranteeing perfect fit. Always verify that the supplier explicitly specifies 20mm as the target size before purchasing.

A quality strap built on vegetable-tanned alligator or certified calf leather lasts 3 to 5 years with moderate daily use (8-10 hours per day) and regular maintenance. Ageing is not degradation but the acquisition of patina: the leather softens, develops deeper tones, and tells the story of its wearer. Factors such as humidity, sweat and sun accelerate ageing. Preventive maintenance (conditioning every 18-24 months) significantly extends service life.