Strap for Saint-Imier Chronograph

The lug width of the Longines Saint Imier L2.784.4.52.6 is exactly 20 millimetres. This measurement refers to the distance between the two horizontal lugs that attach the case to the strap. A compatible strap must be precisely 20mm wide to fit correctly without play or forced installation.

For the L2.784.4.52.6, a premium leather strap is recommended, preferably in alligator or shell cordovan, which balances the sporty elegance of the case. Alternatively, a calf leather strap with vegetable tanning offers natural patina development over time. For a more casual approach, NATO-style cotton or canvas straps in 20mm are compatible and contribute to the vintage aesthetic inherent to the watch.

Strap replacement requires a spring bar tool. Insert the tool into the small slot beside the lug, apply gentle pressure to compress the internal spring of the pin, remove the old strap, and insert the new one by seating the pin into the lugs until it clicks. The operation is straightforward but requires care to avoid scratching the case. Alternatively, an authorised service centre can perform the task.

Yes, all 20mm straps from MilanoStraps are universally compatible with the Longines Saint Imier L2.784.4.52.6, as lug width is a cross-brand standard. However, verify that the strap features appropriate terminations (straight or shaped) to eliminate play between strap and case. MilanoStraps provides precise specifications for each model.

A premium leather strap (alligator, shell cordovan, vegetable-tanned calf) typically withstands 3 to 5 years of daily wear, with variability depending on climate, humidity, and cleaning frequency. Fine leathers such as shell cordovan develop a fascinating patina over time. MilanoStraps offers an 18-month guarantee on all straps, with maintenance and replacement services available through the Casati Milano atelier.