Strap for Symphonette L Black

The Longines Symphonette L2.306.4.57.0 features a lug width of 11mm. This specific measurement requires made-to-measure straps, as it falls outside standard sizes (18, 20, 22mm). To measure the lug width accurately, use a digital calliper on the seats where the original strap sits. Milano Straps offers a complete selection of compatible 11mm straps.

For the Symphonette, we recommend alligator in vegetable tannage or box calf, both in classic colours such as dark brown, cognac, or black. Alligator develops natural patina over time, whilst calf offers a more linear, formal appearance. For those seeking versatility, a stainless steel deployante allows alternating between 11mm straps without tools. In summer, raw cotton or NATO straps provide breathability without compromising elegance.

To change the 11mm lug strap, you will need a spring bar removal tool or small flat-head screwdriver. Position the watch with the strap facing you, locate the small pin securing the lug to the case, and gently push from one side to extract the pin. Repeat on the other side. Align the new strap with the seats and insert the pins from inside outward. If you prefer to avoid DIY, Casati Milano offers professional strap-change services by appointment.

Yes. Milano Straps produces a complete line of artisanal 11mm lug-width straps specifically compatible with the Symphonette. Straps are crafted in alligator, calf, shell cordovan, and other premium materials, customisable in length, initials, and stitching type. All products include quality assurance and are tested before shipment.

Durability depends on material and usage. A quality artisanal alligator or calf strap can last 5–10 years with standard care (periodic cleaning, moisture protection). Shell cordovan, owing to its density, can exceed 10 years. Vegetable tannage develops patina and improves with age. Casati Milano provides an 18-month guarantee on all custom straps, with options for repair and restoration thereafter.