Strap for Symphonette M Diamond / Roman / Bracelet

The lug width of the Longines Symphonette L2.305.0.71.6 is 9 mm. This measurement, below standard market sizes (16, 18, 20 mm), is specific to the feminine model and requires straps manufactured to this exact specification. To verify, use a digital calliper between the case lugs at the point where the strap attaches.

For the Symphonette L2.305.0.71.6, we recommend alligator in black or cognac (regular grain that complements the case's simplicity), vegetable-tanned calf with patina that develops naturally over time, or natural/burgundy shell cordovan. Polished leather is not recommended: the feminine case size does not support excessive formality. All these materials are available in 9 mm from Milano Straps with an 18-month warranty.

Remove the original strap using a spring bar tool, pressing downward to release the lug tension spring. Extract the spring completely. Insert the new strap (9 mm) by aligning the hole with the spring, then insert the spring into the lug until it clicks into place. Verify that the strap is securely fastened by gently pulling. This process requires no specialist skills if executed carefully.

Yes. Milano Straps offers a collection of handcrafted 9 mm straps ready for shipment and customisable in length, initials and stitching colour. All straps are made from natural leather (alligator, calf, shell cordovan) and tested for compatibility with the Symphonette L2.305.0.71.6 lugs. For a fully bespoke experience, the Casati Milano atelier crafts custom straps with personal material selection and WhatsApp updates.

A high-quality handcrafted leather strap has an average lifespan of 4-6 years with daily wear, provided minimal maintenance is performed (occasional soft cloth cleaning, protection from standing water). Vegetable tanning and shell cordovan evolve visually over time, acquiring patina. Milano Straps guarantees 18 months on all handcrafted straps; natural leather degradation is considered characteristic, not defective.