Strap for Francillon Chronograph Stainless Steel / Silver

The Longines Francillon L4.652.4.16.2 features a lug width of 18 millimetres. This measurement represents the classic standard for mid-sized dress-casual timepieces and is compatible with our dedicated online strap collection. To verify the measurement yourself, position a calliper between the two lugs of the case, measuring the internal distance: you will obtain exactly 18mm.

The ideal strap for the Francillon is alligator leather of superior quality, tanned using artisanal methods, which develops a natural patina over time. As an elegant alternative, shell cordovan offers durability and inherent lustre. If you prefer a versatile solution, calf leather tanned vegetally with a stainless steel deployante ensures softness and adaptability to daily wear. For a casual approach, a fabric NATO in neutral tones transforms the timepiece from formal to sporty within moments.

Changing the strap is a straightforward procedure: place the watch on a soft cloth, locate the pin securing the strap to the right lug, insert a spring bar tool into the tiny gap between the pin and the lug, then press gently downward to release the internal spring. Repeat the operation on the left lug. Insert the new strap following the reverse procedure, ensuring the pin is fully seated in both housings.

Yes, absolutely. Any strap with an 18mm lug width is mechanically compatible with the Francillon. The selection of quality artisanal aftermarket straps allows you to personalise your timepiece according to your personal style and seasonal requirements. We recommend selecting noble materials such as alligator, shell cordovan or vegetally-tanned calf to maintain aesthetic coherence with the watch.

The lifespan of a leather strap depends on material quality, frequency of use and maintenance. A superior-grade calf leather tanned vegetally typically lasts 3-5 years of daily wear, whilst shell cordovan can exceed 5-7 years due to the natural density of the material. Alligator, when subjected to regular care (gentle cleaning and periodic conditioning), maintains structural integrity for 6-8 years. Vulcanised rubber straps present longevity similar to cordovan, with superior resistance to moisture.