Strap for Symphonette M Diamond / MOP

The lug width of the Longines Symphonette L2.305.0.87.0 is 9mm. This dimension refers to the distance between the inner shoulders of the two lugs on the case. To verify it correctly, use a digital caliper and measure the space available between the attachment points of the strap lugs.

For the Symphonette, we recommend straps in alligator or vegetable-tanned calf leather, materials that enhance the elegance of the miniaturised case. Alligator develops a natural patina over time, whilst calf leather offers a rich and uniform grain. For more versatile use, natural rubber or cotton straps maintain aesthetic sophistication without functional compromise.

Strap replacement is performed by removing the spring bars that secure the strap to the case lugs. Use a dedicated tool (spring bar tool) to gently compress the bar, extracting it from its housing. After removing the old strap, insert the new one by positioning the spring bars in the corresponding recesses until they click securely into place.

Yes, aftermarket 9mm straps are fully compatible with the Symphonette. Always verify the lug width before purchase. Milano Straps offers straps in various leathers and finishes, customisable in length and colour, specifically selected to maintain the aesthetic balance of this miniaturised case.

A quality leather strap has an average lifespan of 4-7 years with regular use. Longevity depends on frequency of use, climatic conditions and maintenance. Artisanal straps from Milano Straps benefit from an 18-month warranty and can be restored at the Casati Milano atelier to extend their useful life.