Strap for BelleArti 27.3 Stainless Steel

The lug width of the Longines Heritage L2.694.4.53.6 is 17mm. This measurement represents the distance between the watch lugs where the strap attaches. Always verify this dimension with a calliper before purchasing an aftermarket strap to avoid compatibility issues.

For this Heritage model, authentic alligator straps are recommended for formal elegance, vegetable-tanned calf for versatile daily wear, or FKM rubber for smart-casual sportive use. Your choice should reflect your intended context: alligator for formal occasions, calf for daily versatility, and rubber for humid environments or recreational activities.

Removing the strap requires a specialized tool called a spring bar removal tool or strap changer to extract the pins attaching to the lugs. This procedure demands precision to avoid scratching the satin-finished stainless steel case. Professional assistance from a certified watchmaker is recommended. Standard padded straps enable quick and damage-free replacement.

No, it is not advisable. A 16mm or 18mm strap would create unsightly gaps between strap and case or excessive tension during insertion, risking damage to both the strap and the lugs. The 17mm dimension is specific to this Heritage model and is not interchangeable with more common standards.

A high-quality alligator or calf leather strap typically lasts 3–5 years with daily use. Durability depends on frequency of wear, climate conditions, and maintenance: avoid prolonged exposure to moisture, salt sweat, and excessive heat to extend strap life significantly. Vegetable-tanned leather ages aesthetically better than industrial chromium-tanned alternatives.