Strap for Presence 33 Quartz Yellow Roman

The lug width of the Longines Presence L4.720.2.11.8 is precisely 18 millimetres. This dimension is measured by placing a digital calliper between the two internal lugs of the case: the distance must be exactly 18mm. This is a specific characteristic of this Presence model and does not correspond to the standard 20mm found on many other timepieces. Incorrect measurement is the most common cause of incompatibility when purchasing aftermarket straps.

For the Presence L4.720.2.11.8, the ideal strap is alligator with vegetable tanning (Fine grain) in cognac or burgundy tones, or grey taupe box calf for daily wear. If you prefer a more characterful leather, American-origin shell cordovan offers controlled rigidity and a patina that develops over time. Your choice depends on intended use (formal versus daily) and the tones in your wardrobe. Avoid oversized sports straps or garish colours, which would create aesthetic conflict with the austere 33mm case.

To change the strap, position the watch on a soft surface (microfibre cloth). Locate the two spring bars connecting the lugs to the case: use a spring bar tool (fork-shaped or button-style implement) to compress the internal spring of the bar and extract it gently. After removing the old strap, insert the new bars into the case slots and allow the spring to release. Ensure the bars are fully inserted and locked: they should click into position audibly. If you are not experienced, entrust the task to a professional watchmaker to avoid scratching the case.

Yes, any standard 18mm lug width strap is compatible from a physical standpoint. However, aesthetic compatibility depends on proportions: the Presence has a thin case (8.7mm) and modest diameter (33mm), so oversized or sports-oriented straps (rubber, thick NATO) would create an obvious visual imbalance. We recommend verifying that the new strap has a maximum thickness of 5mm and that its aesthetic respects the formal/elegant character of the model.

The lifespan of a leather strap varies depending on material and usage: a box calf subjected to daily wear resists 3–5 years before showing obvious signs of wear; alligator with vegetable tanning can endure 5–8 years thanks to its intrinsic resistance and protective patina development; shell cordovan, being extremely dense, can exceed 10 years if treated carefully. Exposure to direct sunlight, perspiration and heat sources accelerates ageing. Straps made by specialist ateliers (such as Casati Milano) carry an 18-month structural guarantee and can be restored through edge finishing and leather reconditioning.