Strap for Lyre 35 Automatic Stainless Steel

The lug width is 18mm. This measurement represents the internal distance between the springbars anchoring the strap to the case. To verify, insert callipers into the upper lug housing and measure: the result must be exactly 18.00mm. Any strap width differing from this specification (20mm, 16mm) will not be compatible and risks damaging the original lugs.

Alligator leather in black or dark brown creates geometric contrast with the brushed steel case—the most elegant choice. Structured calf leather offers daily practicality with natural patina development over time. Shell cordovan in burgundy tones develops unique striations through wear. For sporty contexts, military-grey or navy NATO straps maintain classical character. Each material engages differently with the 35mm diameter and L619.2 calibre movement.

Strap replacement requires a correct spring bar tool (extractor). Locate the lugs on the case, position the tool into the groove beneath the springbar, press slightly upward to release the spring: the pin retracts and the strap detaches. Repeat for the lower lug. Insert the original springbars into the new strap, aligning with the lugs and engage: a firm click confirms correct seating. Avoid hammers or improvised tools that will damage the brushed case finish.

Any strap featuring 18mm lug width is compatible with the L4.760.4.12.2. Verify the technical specification on the product sheet before purchase. Online you will find options in alligator, calf, vegetable-tanned leather, shell cordovan, NATO and FKM rubber. To guarantee aesthetic and structural suitability, choose specialised brands that understand the value of this 35mm model and respect its visual proportions.

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3–5 years with daily wear, considering exposure to light, humidity and perspiration. Durability depends on tanning method and protective treatments. Vegetable-tanned straps age visibly but retain structural integrity. Shell cordovan resists longer due to natural fibre density. FKM rubber and NATO offer superior durability (5–8 years) in humid or soiled environments. The Casati Milano atelier guarantees 18 months on bespoke straps, covering manufacturing defects and ordinary initial wear.