Longines
Conquest Heritage L1.648.4.62.2— lug 19mm

The lug width is 19mm. This measurement represents the distance between the two metal terminals where the strap attachment pins connect. It is an intermediate, non-universal size that characterises the L1.648.4.62.2 model and requires specific straps.

Natural alligator is the most elegant choice for formal occasions, thanks to its brushed pattern that dialogues perfectly with the stainless steel case. For daily wear, vegetable-tanned calf leather offers robustness and gratifying ageing. NATO straps in cotton blend and butadiene rubber are sportier alternatives without compromising the watch's character.

Strap replacement involves removing the attachment pins—a small metal lever that slides beneath the case lug. Using a dedicated tool or small screwdriver, extract the pin by sliding it upwards from below. Once free, disconnect the old strap and insert the new one, sliding the pin through the corresponding holes until you feel the locking click.

Yes, any quality strap with a 19mm lug width is compatible with this model. We recommend verifying that the attachment is compatible with the pins used by Longines (typically straight bars of 1.5–1.8mm diameter) and that leather thickness does not compromise insertion into the case terminals.

A high-grade leather strap (alligator, calf, shell cordovan) typically lasts 3–5 years with daily wear, depending on humidity exposure, perspiration and heat. Proper maintenance (drying after water contact, periodic conditioning) and rotation with other straps significantly extends longevity. Casati Milano artisanal straps include an 18-month warranty against manufacturing defects.