Strap for La Grande Classique Automatic 36 Stainless Steel / White

The lug width (distance between the attachment points) is precisely 18 millimetres. This measurement defines the vertical space between the upper and lower lugs of the case. To verify compatibility, measure with callipers the free distance between both lugs: it must register exactly 18mm. A compatible strap inserts via stainless steel spring bars that traverse the lugs, creating a mechanically stable connection capable of supporting the watch's weight without lateral movement.

The optimal choice depends on intended use and aesthetic preference. For formal contexts, we recommend alligator in black or cognac brown with vegetable tanning: these materials amplify elegance without visually competing with the case. For daily wear, soft box calf vitello offers extended comfort and develops a noble patina through use. Shell cordovan represents an intermediate choice for those seeking material prestige with superior durability compared to standard alligator. For aquatic sports, structured rubber (FKM) guarantees complete water resistance whilst maintaining a discreet profile that respects the watch's proportions.

Strap replacement is accessible even without specialist tools. Invert the watch and locate the spring bars—the metal pins connecting the strap to the lugs. Using a spring bar tool (readily available online), press the pin downward, liberating one end of the strap. Slide the old strap free from the lug. Insert your new 18mm strap, aligning it with the lug channel, then reposition the spring bar into its seat. Repeat for the opposite side. The procedure requires approximately 2–3 minutes. Should you prefer professional installation, Casati Milano provides this service at the atelier by appointment, ensuring optimal tension and alignment.

Absolutely. Compatibility is guaranteed by the standardised 18mm lug width. Any artisanal 18mm strap may be installed regardless of manufacturer. We recommend, however, verifying construction quality: vegetable-tanned leather, dual stitching with waxed thread, regulated edge finishing, and a properly constructed adjustable passant. Milanostraps.it straps meet these exacting standards, offering warranties extending to 18 months with personalisation options including length, initials, and stitching thread colour selection.

Longevity varies according to material composition, frequency of wear, and environmental conditions. An alligator or shell cordovan strap, worn 3–4 days weekly in controlled climate, typically endures 4–6 years before replacement becomes necessary. Soft vitello exhibits similar durability but demands greater care during extreme humidity exposure. Vegetable-tanned leather develops a distinguished patina with age, extending perceived longevity through noble ageing. Canvas NATO straps persist 7–10 years due to the resilience of synthetic-natural hybrids. Accelerating factors include perspiration exposure, direct solar radiation, and prolonged creasing under tension. Casati Milano offers regeneration and replacement services on personalised straps with 18-month warranty coverage.