Strap for Presence 34.5 Automatic Gold

The lug width (ansa width) of the Longines Presence L4.778.6.32.2 is 18mm. This measurement must be verified by placing a calliper millimetre by millimetre between the two lugs of the case: it is the horizontal space where the strap attaches. On this model, precision is essential because a strap that is not exactly 18mm will create visual misalignment or risk damage to the yellow gold case.

For a yellow gold 18ct Longines Presence, genuine alligator in cognac or medium brown tones represents the ideal choice from a stylistic perspective. The natural grain of alligator dialogues elegantly with the warmth of yellow gold, creating harmony consistent with classic Swiss watchmaking tradition. Valid alternatives include vegetable-tanned calf (for those preferring superior softness) and shell cordovan (for purists seeking a patina that evolves over time).

Changing the strap on the Longines Presence requires a spring bar tool, available online at accessible cost. Position the tool under the spring bar (the small spring that supports the strap on the lugs), apply gentle pressure to release tension, and remove the strap. Repeat from the other side. To insert the new strap, align the strap holes with the spring bars, insert the spring bar from one side, then the other. If you are not completely confident, consult a professional watchmaker or Casati Milano atelier to avoid scratches on the gold case.

Yes, aftermarket 18mm straps are perfectly compatible with the Longines Presence L4.778.6.32.2, provided they strictly respect the specified lug width. milanostraps.it offers a selection of 18mm straps handcrafted from leather, customisable in material, colour and stitching thread. Casati Milano atelier also creates bespoke custom straps with personal selection of leathers and direct consultation.

The lifespan of a leather strap depends on construction quality and usage. A high-quality alligator or calf, with vegetable tanning and hand-stitched construction, can last 5 to 10 years or more if subject to ordinary maintenance: storage in a dry location and distance from direct heat sources. Stitching is the first element to experience stress; stitching executed with quality thread and artisanal techniques guarantees superior longevity. The natural ageing of noble leather is desired, creating a unique and personal patina over time.