Strap for Perpetual Calendar 5159G White Gold / Silver

The lug width (strap width) of the Patek Philippe Grand Complications 5159G-001 is 20 millimetres. This dimension is standard for the model and represents the internal distance between the two lateral lugs of the case. A compatible strap must present an exact width of 20mm to ensure a precise fit without play.

For the 5159G-001, high-quality alligator represents the orthodox pairing: uniform scales reflect the quadrant's symmetry. Vegetable-tanned calf offers greater versatility and develops patina over time. Shell cordovan provides unique density and lustre, ideal for those seeking noble ageing. The choice depends on intended use and personal colour preference.

Strap replacement requires a specific tool (strap removal pin) to extract the two lateral pins holding the strap to the case. This operation should be performed on a clean, protected surface. If you lack experience, it is advisable to entrust the operation to a professional watchmaker or the Casati Milano service to avoid scratching the white gold case.

Yes, absolutely. A high-quality artisanal strap, crafted with fine leather (alligator, calf, shell cordovan) and designed for the 20mm lug width, is compatible and does not compromise either the value or dignity of the watch. Many owners prefer to have multiple straps to vary seasonal aesthetics. The quality of construction and materials is the only criterion that matters.

Durability depends on leather quality and intended use. A first-grade alligator or vegetable-tanned calf can last 5-7 years with moderate daily wear, developing desirable patina. Shell cordovan tends to last longer due to its natural density. A strap worn occasionally (as appropriate for a Grand Complications) can exceed 10 years. Casati Milano provides an 18-month warranty on manufacturing defects and offers repair and replacement services.