Strap for Grandmaster Chime 5175

The lug width of the Patek Philippe Grand Complications 5175R-001 is 20mm. This measurement represents the internal distance between the two lugs of the case and must be observed precisely to ensure mechanical compatibility and correct visual proportions. It is always measured internally, from lug to lug.

For the 5175R-001, straps in alligator (the classical choice), fine calf leather, shell cordovan or vegetable-tanned calf leather are recommended. Alligator in dark brown or black tones is the most appropriate solution for the technical complexity of this timepiece. Calf leather offers a finer, more uniform grain for those preferring aesthetic restraint.

Replacement requires a specific springbar remover tool. Position the tool delicately under the lug pin, apply upward pressure until the pin retracts, remove the old strap and insert the new one by aligning the holes with the pins. We recommend professional service by Casati Milano to ensure precision and case protection.

All straps with a 20mm lug width are compatible. Compatibility requires that the strap has adequate thickness (not exceeding 4.5mm) and precise width. Milanostraps.it offers a complete selection of 20mm straps certified for this specific measurement, guaranteeing mechanical compatibility.

Durability depends on usage, care and leather type. A quality artisanal alligator strap lasts on average 3-5 years with regular wear. Shell cordovan is more durable (5-7 years) due to its natural density. Regular maintenance (gentle cleaning, drying, conditioning) extends strap lifespan. Casati Milano offers an 18-month warranty on manufacturing defects.