Strap for Presence 34.5 Automatic Gold

The lug width of the Longines Presence L4.778.6.11.0 is 18 mm, measured from outer edge to outer edge between the two spring bar attachments. This historical dimension requires careful selection of aftermarket straps, as not all manufacturers offer widths specific to this measurement.

For the Longines Presence in yellow gold, we recommend alligator leather in dark brown, dark blue, or burgundy tones. Alternatively, aniline calf in cognac or black offers versatility and natural ageing. Avoid overly informal materials such as NATO or rubber, which undermine the formal character of the timepiece.

Strap replacement is carried out by extracting the spring bar using a dedicated tool, available from jewellers or strap suppliers. Position the tool beneath the strap terminal, press gently to release it, remove the old strap, and insert the new one until the spring bar clicks into place. To avoid damage, it is advisable to seek professional assistance.

Yes, aftermarket 18 mm straps are compatible with the Longines Presence L4.778.6.11.0, provided they are manufactured to correct specifications regarding width and thickness. We recommend verifying that the strap is specifically calibrated for an 18 mm lug width, as an incorrect width compromises both the aesthetic and functional integrity of the case.

The lifespan of a leather strap varies depending on material and frequency of wear. A quality alligator or shell cordovan typically lasts 3–5 years of daily use, whilst aniline calf lasts 2–4 years. The leather naturally wears in high-stress areas (spring bar slots and buckle), developing a unique patina. The milanostraps warranty covers all straps for 18 months.