Strap for Elegant Collection Automatic 39 Stainless Steel / Blue - Diamond / Bracelet

The lug width (misura ansa) of the Longines Elegant L4.910.4.97.6 is 20mm. This dimension is measured orthogonally from inside to inside of the spring bar attachment. Always verify this measurement precisely before purchasing an aftermarket strap.

For the Elegant L4.910.4.97.6, we recommend satin-finish black alligator or vegetable-tanned calf in cognac-brown tones. These materials complement the brushed stainless steel case. Shell cordovan in burgundy or dark brown represents the premium choice for those who appreciate patina development over time.

To change the strap, use a spring bar tool to compress the attachment spring. Insert the tip into the visible notch beneath the lug and gently push to release the spring, then extract the spring end from the hole. Repeat on the opposite side. Remove the old strap and insert the new one by reversing the procedure, ensuring the spring locks properly.

Theoretically, any strap with a 20mm lug width is physically compatible. However, we specifically recommend artisanal leather or shell cordovan straps, not synthetic or industrial rubber. Quality construction and noble materials respect the elegant and Swiss character of the watch, avoiding chromatic inconsistencies.

A vegetable-tanned leather strap guarantees average durability of 3-5 years with moderate daily wear. Shell cordovan lasts longer (5-7 years) due to dermis density. Quality alligator ensures 4-6 years. Longevity depends on sunlight exposure, humidity, wear frequency, and maintenance: avoid prolonged immersion and apply conditioner every 12 months.