Strap for Flagship 35.6 Automatic Stainless Steel Cream

The lug width of the Longines Flagship L4.774.4.76.6 is 18 millimetres. This dimension represents the distance between the two lugs of the case, measured from the inner edge to the inner edge. It is essential to measure the lug width accurately before ordering a compatible strap, by positioning a ruler between the two case pins.

The most suitable strap depends on the context of use. For formal occasions, alligator with natural silk stitching emphasises classical sobriety. For daily wear, vegetable-tanned calf offers versatility and patina that ages nobly. For a sportier approach, shell cordovan creates a bridge between formality and dynamism. All straps must feature an 18-millimetre lug width.

The strap is changed using a spring bar removal tool or a small hammer with punch. Position the watch on a soft surface (cloth), locate the two pins that secure the strap to the lugs, gently push the pins outward until they detach. Align the new strap with the lug holes and reinsert the pins. If you are inexperienced, consult a specialised watchmaker.

Yes, provided the lug width is 18 millimetres. An artisanal strap of quality with 18mm lugs is fully compatible with the Flagship. It is advisable to choose straps made from premium materials such as alligator, vegetable-tanned calf or shell cordovan to ensure durability and aesthetics proportionate to the watch's quality.

The lifespan of a leather strap depends on material quality and usage. A superior-grade alligator strap lasts 5–7 years with daily wear. Vegetable-tanned calf resists 4–6 years. Shell cordovan, due to its natural density, can last 6–8 years. Factors such as humidity, sun exposure and frequency of use affect longevity. An 18-month guarantee covers manufacturing defects and stitching quality.