Strap for Presence 25.5 Automatic PVD Gold / Black / Bracelet

The lug width of the Longines Presence L4.321.2.52.7 is 13mm. This is a specific measurement determined by the proportional relationship between the case diameter of 25.50mm and the height of the lug mounting. Lug width should be measured perpendicularly using a digital calliper, measuring the internal distance between the two lugs of the case.

The ideal strap depends on intended use and aesthetic preferences. For maximum elegance, alligator with natural grain is the classical choice: it offers exceptional resistance to wear and develops patina over time. Vegetable-tanned calf leather is ideal if you desire softer texture and biographical patina development. A silk or cotton NATO strap permits chromatic versatility whilst maintaining formality. For daily use with humidity exposure, vulcanised rubber delivers modern sophistication.

Strap replacement requires a spring bar tool, a specialised instrument that lifts the spring-loaded pins (spring bars) securing the strap to the lugs. Position the tool beneath the spring bar on the right side, apply gentle upward pressure, and slide the old strap laterally away. Repeat on the opposite side. Finally, insert the new strap, ensuring the pins remain seated correctly, and release the tool. If inexperienced, consult a qualified watchmaker.

Yes, provided the strap is manufactured for 13mm lug width. Artisanal straps of quality, such as those offered by Milano Straps, are constructed to precise specifications ensuring perfect compatibility. For proper fitment, the spring bar pins must be correctly dimensioned, and the internal width of the strap lugs must correspond exactly to the 13mm specification of the Longines case.

Leather strap longevity varies according to material quality, tanning method, frequency of wear, and environmental conditions. A supreme quality alligator with vegetable tanning may endure 5–8 years or longer with daily use and regular maintenance (protection from stagnant water, occasional cleaning). Vegetable-tanned calf typically lasts 3–5 years. Vulcanised rubber has comparable lifespan to calf but exhibits greater humidity resistance. Factors such as prolonged sun exposure, acidic perspiration, and thermal fluctuations accelerate ageing. Milano Straps provides 18-month warranty on artisanal straps.