Strap for Flagship Heritage NRP Sagres

The Longines Heritage L4.817.4.79.2 has a lug width of 19 mm. This measurement corresponds to the distance between the lugs' spring bars on the case. To verify compatibility with an aftermarket strap, measure the space between the two pins: it must be exactly 19 mm.

The Heritage L4.817.4.79.2, with its 38.50 mm case and minimalist aesthetic, pairs beautifully with natural leathers such as cognac alligator, white smooth calf, or burgundy shell cordovan. For a more casual option, a grey-dark NATO canvas maintains the watch's dignity. Your choice depends on usage context and the patina you wish to develop over time.

Changing the strap requires a spring bar tool to compress the spring bars. Place the watch on a soft surface, locate the two side pins of the lugs, insert the spring bar tool to compress them, and gently extract the old strap. Insert the new strap (19 mm width) by clicking the bars into the corresponding slots. If you prefer professional assistance, contact Casati Milano for expert service.

Yes, absolutely. All aftermarket straps with a 19 mm lug width are fully compatible with the L4.817.4.79.2. Milano Straps offers a collection of handcrafted leather straps specifically designed for this width. Superior construction quality and premium materials ensure durability and aesthetics matching the timepiece's standards.

A well-maintained natural leather strap lasts approximately 4-6 years with regular wear, varying by material (shell cordovan is more durable than calf) and climate conditions (humidity accelerates aging). The strap develops patina over time, conferring aesthetic authenticity. Casati Milano guarantees 18 months of wear without construction failure and provides maintenance advice to extend useful life.