Strap for Presence 40 Automatic Stainless Steel / White

The lug width (ansa measurement) of the Longines Presence L4.922.4.12.2 is 20mm. This dimension ensures correct visual proportion between the 40mm case and strap, enabling substantial material personalisation choices.

For the Presence, an alligator strap (Mississippiensis grain with natural fine texture) or vegetable-tanned calfskin are ideal: both amplify the case satinisation without competing visually. FKM rubber remains excellent for sport contexts; NATO for daily versatility.

Use a spring bar tool to extract the lug pins. Position the tool in the side groove of the spring bar, gently lift until the ball disengages, then remove the old strap. Insert the new strap by sliding the spring bar into the lugs until the retention click.

Yes, the Presence fully supports aftermarket straps of 20mm width. Verify that thickness does not exceed 4mm when positioned on the lugs, to avoid friction on spring bar slots. Casati Milano supplies straps with guaranteed precision tolerances.

A vegetable-tanned calfskin strap offers durability of 3-5 years with ordinary maintenance (cleaning, occasional balm application). Vegetable-tanned alligator extends lifespan to 6-8 years. Durability depends on frequency of use, sun exposure, and ambient humidity.