Strap for Heritage Prestige Yellow Gold / Silver

The Longines Heritage L4.685.2.76.2 features an 18 mm lug width. This measurement represents the external distance between the lugs and must match the strap you intend to purchase. The tapered lugs on this model accommodate slightly undersized straps (17.5-17.8 mm) without compromise to the attachment mechanism.

For a timepiece of this calibre, we recommend alligator leather with vegetable tanning, which complements the yellow gold case whilst maintaining the austere elegance of the design. Calfskin leather offers a more contemporary alternative, whilst shell cordovan provides unique patination and dignified ageing. For less formal contexts, NATO textile or FKM rubber ensures versatility without sacrificing construction quality.

The strap is replaced by removing the fixing pins (the metal axes) from the lugs using a dedicated tool (spring bar remover). Insert the tool into the lateral spaces, slide the old strap out from the lugs, and insert the new one, ensuring the pins are fully seated. This procedure requires precision; if you lack the proper tool, the Casati Milano atelier performs the changeover by appointment.

Yes, all straps with an 18 mm lug width are compatible with the L4.685.2.76.2. We recommend brands specialising in craftsmanship such as those available on milanostraps.it, which guarantee construction quality consistent with the value of your timepiece. An inferior-quality strap not only damages aesthetics but may compromise the attachment and functionality.

Longevity depends on the tanning method and usage patterns. An alligator or shell cordovan strap with vegetable tanning, under moderate use and regular maintenance (damp cloth cleaning, avoiding prolonged water contact), lasts 3–5 years. Smooth calfskin tends to show signs of wear more rapidly (2–3 years), whilst FKM rubber remains fully functional for 5–7 years without aesthetic degradation. Casati Milano provides an 18-month warranty on all bespoke straps.