Strap for Constellation Quadra Quartz 28 Chronograph Stainless Steel / Diamond / MOP/ Alligator

The lug width of model 1847.75.36 is 19 millimetres. This measurement is the space between the spring bars that support the strap on the lugs of the case. Any compatible strap must have its ends cut or shaped to fit perfectly within this width.

We recommend a dark brown alligator strap for formal occasions, or vegetable-tanned calf leather for more versatile daily wear. In summer, a rubber or silicone strap will maintain comfort. The choice depends on the context of use and frequency of wear. For variety, rotating between three different straps fully exploits the versatility of this compact model.

To change the strap, position the watch face up and use a spring bar remover (a specialized tool with two thin, flat ends) to compress the elastic spring bars that support the strap. By inserting the tool into the small side holes of the lugs, you can lift the spring bar and free the old strap. Repeat the operation on the other side. The new strap is installed by reversing the procedure. If you are not experienced, contact an authorized retailer or the Casati Milano atelier.

Yes, absolutely. Model 1847.75.36 accepts straps from any brand as long as the lug width is 19mm. Artisanal aftermarket straps – particularly those in natural leather with vegetable tanning or in alligator – often exceed the quality of factory straps. Customization is one of the greatest advantages of owning a watch of these proportions, as it allows you to adapt it to seasons, occasions and aesthetic preferences.

A high-quality leather strap, with vegetable tanning and artisanal construction, typically lasts 3-5 years of intense daily wear. Durability depends on frequency of wear, climate (humidity and heat accelerate aging), perspiration and care. A strap rotated seasonally or with moderate use can last 7-10 years. Our artisanal straps include an 18-month warranty and can be repaired at the Casati Milano atelier if necessary.