Omega
Constellation 1841.75.36

The lug width of the Constellation 1841.75.36 is 20 millimetres. This is the precise distance between the case attachment pins. It is essential to verify this measurement before purchasing an aftermarket strap, as an incompatible lug width will not fit into the attachments. If you own a digital calliper, measure perpendicularly between the two pins; alternatively, contact the seller with the case reference number.

Alligator represents the most refined choice for this model, thanks to its fine texture and lustre that does not compete visually with the polished lugs of the case. Alternatively, vegetable-tanned calf offers sobriety and develops a fascinating natural patina over time. Shell cordovan is suitable for those who prefer superior durability. Avoid sport materials such as NATO or rubber, as they clash with the dress aesthetic of this watch.

The process requires a spring bar tool or a fine screwdriver. Insert the tool into the small hole located under the pin, gently pushing inward to compress the internal spring. Once the pin is loosened on one side, extract it completely and repeat from the other side. Then insert the new strap by aligning the lug with the pins and press until the safety click. If you are unsure, consult a watchmaker or the Casati Milano service for a professional strap change.

A high-quality leather strap (alligator, calf, shell cordovan) has an average lifespan of 4–6 years with daily use, considering the friction from wearing and environmental exposure (sun, humidity, sweat). Durability depends on the tanning process, care, and frequency of use. Casati Milano straps include an 18-month warranty and are constructed using artisanal methods that extend their useful life. A simple precaution: avoid prolonged water exposure and allow the strap to dry naturally if it gets wet.