Patek Philippe
Grand Complications 5950A-001— lug 20mm

The Patek Philippe 5950A-001 features a 20-millimetre lug width. This dimension is determined by the case geometry and the pins that support the strap. It is essential to verify this measurement before ordering an aftermarket strap to ensure a precise fit without excessive play or forcing.

Alligator leather with vegetable tanning is the historical choice for Grand Complications. However, vegetable-tanned reindeer calf represents a contemporary and durable alternative. For those seeking practicality, a cotton NATO strap or a technical rubber strap offers daily comfort whilst maintaining the sporty identity of the rattrapante chronograph.

Changing a strap on a Patek Philippe requires specific tools: a spring-bar removal tool or thin steel implements to lift the lateral pins without damaging the case. If you lack experience, consulting an authorised repairer or specialised strap maker such as those at Casati Milano is advisable to avoid micro-scratching the stainless steel case.

Yes, a quality custom-made strap with a 20mm lug width is perfectly compatible. The internal shoulders of the lug must adhere correctly to the case pins. Relying on a qualified strap maker who precisely measures the case and pin positioning ensures an impeccable and reversible fit over time.

A well-made alligator or calf leather strap, with vegetable tanning, typically lasts 3-4 years of daily wear, extending to 5-6 years if alternated with other straps. Durability depends on sun exposure, humidity, frequency of wear and tanning quality. Casati Milano offers an 18-month warranty against manufacturing defects but recommends periodic rotation to extend service life.