Strap for Flagship 35.6 Automatic Two Tone Cream

The lug width of the Longines Flagship L4.774.3.76.7 is precisely 18 millimetres. This measurement refers to the internal distance between the two lugs of the case, verified with callipers. It is a rare specification in contemporary watch catalogues, requiring exact sourcing when selecting a compatible strap.

Alligator represents the most elegant choice for this model: its finely regular texture harmonises seamlessly with the understated case lines. Aged alligator with a burnished patina or chrome-tanned calf offer equivalent refinement. For informal sporting contexts, NATO fabric or natural rubber provide functional versatility without compromise.

Strap replacement requires extracting the lug pins using a dedicated tool—either a spring-loaded punch or dedicated extractor. Position the watch on a stable base and gently push the pin from the opposite side until it releases. Align the new strap's holes with the lug posts and reinsert the pin until it clicks into position. If unfamiliar with this procedure, consult a professional watchmaker.

Yes. High-quality 18mm aftermarket straps are available through specialised online retailers such as MilanoStraps, offering options in alligator, calf, vegetable-tanned leather and shell cordovan. It is essential to verify that the lug width is precisely 18mm and that the attachment holes are correctly proportioned for your case.

Lifespan depends on leather type and daily wear intensity. Alligator or shell cordovan with vegetable tanning lasts 5–8 years with regular maintenance. Chrome-tanned calf, more sensitive to humidity, offers 3–5 years of intensive use. Seasonal rotation of straps significantly extends the longevity of each. Guarantees from certified artisans typically cover 18 months.