Strap for La Grande Classique 33 Quartz Diamond Bezel Roman

The lug width is 18mm. This measurement represents the internal space between the two lugs of the case and is essential for selecting compatible straps. It is measured using a digital calliper positioned horizontally between the lugs. This is a rare dimension in contemporary watchmaking, as 20mm and 22mm dominate modern production.

Alligator leather remains the most conservative choice, as its uniform grain dialogue elegantly with the case's constructive geometry. Alternatively, Italian calf leather with vegetable tanning introduces tactile softness, whilst shell cordovan offers extraordinary qualities with progressive improvement over time. For informal environments, silk-woven NATO or vulcanised rubber provide declared robustness. Selection depends on context of use and personal aesthetic preference.

Strap replacement requires a specialised spring bar tool. Gently insert the tool's tip into the access hole beneath the lug, applying upward pressure to release the spring pin. Remove the old strap and position the new one, ensuring the pin clicks correctly into place. Repeat on the opposite lug. If you do not possess the tool, consult a certified watchmaker.

Yes, any strap with an 18mm lug width is compatible. Artisanal aftermarket straps, customisable in leather, colour and measurement, offer an excellent alternative to the original strap. Always verify lug width compatibility before purchase. Straps crafted by sartorial ateliers such as Casati Milano guarantee precise fit and elevated construction quality, with extended warranties.

Durability depends on material and use. Alligator and vegetable-tanned Italian calf, with ordinary care, maintain structural integrity for 3–5 years. Shell cordovan, if exposed to controlled conditions (avoiding excessive humidity), can last 5–7 years or longer, improving aesthetically over time. Vulcanised rubber resists for 2–3 years before showing surface cracking. The 18-month warranty on artisanal straps covers construction defects and ensures rapid replacement in case of premature deterioration.