Strap for Symphonette M MOP

The lug width of the Longines Symphonette L2.305.4.87.0 is 9mm, a specific standard for micro-sized cases. You can verify this measurement with a digital calliper by measuring from the centre of one spring bar to the centre of the other, perpendicular to the case plane. This dimension requires proportionate straps and does not accept adapters.

We recommend alligator in black or cognac for this Symphonette, which emphasises the minimalist elegance of the 18.9mm case. Vegetable-tanned calf leather is an excellent choice for those preferring a more versatile option with a patina that ages beautifully. For more casual use, premium FKM rubber offers comfort and durability whilst maintaining elegance.

The change requires a professional spring bar removal tool to eject the spring bars from the lugs. Position the tool in the small lateral groove of the spring bar and push gently to compress the internal spring; the spring bar will exit the case. Repeat for both attachments. In reverse sequence, insert the spring bars into the new strap, aligning them perfectly with the case lugs. If you are inexperienced, consultation at Casati Milano is recommended.

All straps with a 9mm lug width are compatible with your Symphonette. Milano Straps offers a complete collection of straps in alligator, calf, shell cordovan and rubber with 9mm lug width, customisable in colour, stitching and initials. Atelier Casati Milano also crafts bespoke pieces with sartorial consultation.

A quality vegetable-tanned leather strap lasts an average of 4-6 years with daily use, and can extend with proper maintenance. Alligator and shell cordovan, being structurally stronger leathers, reach 6-8 years. Longevity depends on intensity of use, care and climatic conditions. All Milano Straps feature an 18-month warranty from delivery.