Strap for Symphonette XL Black

The Longines Symphonette L2.307.4.57.0 is fitted with lugs of exactly 13mm width. This dimension is precise and permits no variation; a strap with an incorrect lug width will not seat properly on the case horns. To verify, measure the distance between the two lugs using a digital calliper or millimetre ruler.

The ideal strap depends on usage context and personal preference. Genuine alligator represents the most refined choice, emphasising the watch's formal elegance; vegetable-tanned calf leather offers a softer feel and contemporary aesthetics; a NATO strap is perfect for those seeking practicality and versatility. We recommend selecting based on primary use context and the tone that best contrasts with the stainless steel case.

Strap replacement is accomplished by removing the spring bars (lug pins) that hold the strap in position. Use a spring bar remover tool (readily available online) to compress the internal pin and extract it; once one side is free, repeat on the other. Then align the new strap with the holes and reinsert the pins, compressing until you hear a click. Alternatively, Casati Milano's atelier offers professional strap change by appointment.

Yes, provided the strap is specifically dimensioned for 13mm lugs. Milanostraps.it offers aftermarket straps of artisanal quality, manufactured to elevated standards and customisable in material, colour, thickness, and stitching. A high-quality aftermarket strap will not compromise the watch's integrity or value when correctly installed.

Longevity depends on leather quality, frequency of use, and environmental conditions. A vegetable-tanned quality leather strap may last 3–5 years with regular maintenance (gentle cleaning, protection from excessive moisture, avoiding prolonged perspiration). Alligator and premium calf typically offer greater durability. Casati Milano warrants its artisanal straps for 18 months and offers regeneration services (re-working, pressing, protective treatments) to extend working life.