Strap for Master Collection 40 Date Stainless Steel / Blue / Bracelet

The lug width of the Longines Master Collection L2.793.4.92.6-2 is precisely 21mm. This specification is exact and non-tolerant; straps of any other width will not fit correctly into the case lugs. To verify before ordering, place a ruler between the two inner lugs of the case and measure the space: the result must be exactly 21mm.

Premium alligator leather is the most coherent choice for the Master Collection: natural texture, patina that evolves over time, and exceptional durability. Alternatively, vegetable-tanned calf leather offers understated elegance and immediate softness. For conscious sportive use, shell cordovan guarantees nearly indestructible resistance. Avoid synthetic rubber or plastic straps that undermine the watch's quality.

You will need a spring bar remover tool. Position the watch so that the lugs are horizontal in front of you. Insert the flat end of the remover into the slot of the metal pin and push gently towards the centre: the internal spring will compress and the strap will loosen. Remove the old strap, insert the new one by aligning the pins, and allow the spring to snap back into place. Never force: the movement should be fluid.

Yes, provided the lug width is exactly 21mm. Third-party straps in alligator, calf, shell cordovan, and fabric exist that meet this specification. Purchase from specialised manufacturers who guarantee precise tolerances and construction quality; inexpensive 21mm straps often present finish defects or low-quality leather.

Longevity depends on the material and use. Premium vegetable-tanned alligator lasts 5–8 years in moderate daily use, developing desirable patina. Shell cordovan exceeds 10 years. Calf leather lasts 3–5 years, more vulnerable to moisture. All leather straps require maintenance: avoid excessive water, expose periodically to dry air, and apply protective creams every 6–12 months. A well-maintained strap can last twice as long.