Strap for Split-Seconds Chronograph 5959 Platinum / White

The 5959P-001 features a lug width of 16mm. This is a non-standard dimension in contemporary watchmaking, reflecting the classical proportions of 1950s horology. Measurement should be taken perpendicularly from the inner edge of one lug hole to the inner edge of the opposite hole, excluding the protruding lugs of the case.

Black alligator featuring vegetable tanning represents the canonical choice, paired with a platinum deployante buckle. It achieves the ideal balance between understated elegance and visual contrast. Alternatively, vegetable-tanned calf leather, particularly in taupe brown tones, offers greater versatility and a patina that evolves over time, making it ideal for daily wear.

To change the 5959P-001 strap, use a dedicated spring bar tool inserted perpendicularly from the underside of the lug hole to compress the spring and disengage the attachment. Platinum, despite its hardness, remains susceptible to scratching: deliberate movements and tools with rounded edges are essential. The procedure is best performed by an authorised Patek Philippe service centre or an experienced artisan.

Yes, a quality aftermarket strap is compatible, provided it respects the 16mm lug width and is crafted from noble materials (alligator, calf, shell cordovan). It is advisable to consult specialist manufacturers who guarantee constructive precision and finishing compatible with luxury horology. Casati Milano offers a bespoke customised service by appointment at its Milan atelier.

Leather strap durability depends on material, usage and maintenance. Quality alligator, with vegetable tanning, resists 3 to 5 years of daily wear. Shell cordovan, though stiffer initially, tends to last longer (5-7 years). Calf leather is more delicate and requires greater maintenance. Factors such as humidity, sunlight exposure and water contact significantly reduce longevity.