Strap for Symphonette M Roman

The lug width of the Longines Symphonette L2.305.4.71.0 is 9mm. This measurement is specific to the model and cannot be substituted: a 10mm or 8mm strap will not be compatible with this case. To verify, measure the distance between the two horizontal lugs on the case.

The Symphonette is proportioned for elegant straps in vegetable-tanned alligator, grained calf leather, or shell cordovan. We advise against materials that are too heavy or thick, as they would visually overload the 18.90mm case. A brown alligator strap or black calf leather are formal choices; slate-grey calf offers contemporary versatility.

Changing the strap requires a spring bar tool or a thin rod. Insert the tool gently beneath the lug pin, lift slightly to compress the internal spring, then withdraw the pin. Repeat on the other side. Insert the pins of the new strap, ensuring they click into place. If unfamiliar with the procedure, consult a qualified watchmaker.

Yes, provided the strap is designed for 9mm lug width. High-quality aftermarket straps—crafted in alligator, calf or shell cordovan—are fully compatible and often surpass original offerings in customisation options. We offer a curated collection of 9mm straps, many customisable with initials and choice of thread colour.

A quality leather strap (alligator, calf, shell cordovan) typically lasts 5–7 years with moderate use and proper care. Prolonged sun exposure, constant humidity and lack of regular cleaning reduce longevity. Our straps include an 18-month warranty. The patina that develops naturally enhances the object's elegance over time.