Strap for 1815 Up / Down Yellow Gold

The lug width of the 221.021 model is 19 millimetres. This specific measurement is characteristic of the 1815 in yellow gold and is essential for selecting a compatible strap. To verify it accurately, insert a ruler between the lugs at the attachment point of the original strap.

For a watch of this sophistication, genuine alligator represents the natural pairing for formal occasions, whilst vegetable-tanned calf leather is ideal for conscious everyday wear. Shell cordovan constitutes the choice for those wishing to invest in leather that improves over time. For sporting contexts, a strap in vulcanised rubber with fine weave maintains elegance without compromise.

Strap replacement occurs via the spring bars positioned at the ends of the lugs. Using an appropriate tool (spring bar tool), gently compress the lateral spring to disengage it from the seat on the case, then extract the strap. The operation requires moderate dexterity; if in doubt, consult a qualified watchmaker.

Yes, any strap with a lug width of 19 millimetres is compatible with the 221.021. You may choose from online offerings (such as those from milanostraps.it) or commission a bespoke piece from an artisan saddler such as Casati Milano. The key is always to verify the lug width before purchase.

Durability varies depending on material and use. Vegetable-tanned calf typically lasts 3–5 years with daily wear; alligator resists longer (5–8 years) owing to the leather's structure. Shell cordovan, if properly maintained, can remain functional beyond ten years. Wear also depends on humidity and frequency of wear: store the strap in a dry environment when not in use.