Strap for Split-Seconds Chronograph 5950 Rose Gold / Silver

The 5950R-001 is fitted with a 20mm lug width. This measurement is model-specific and ensures correct optical proportions relative to the 37mm case and the complex movement within. When purchasing an aftermarket strap, always verify that the spring bars slide freely yet without lateral play at the attachment points to the case.

Alligator is the classic choice par excellence, thanks to its natural grain that dialogues with the square rose gold case and develops patina over time. Shell cordovan offers natural lustre without polishing, amplifying the metal's warmth. Vegetable-tanned leather ensures chromatic stability and excellent moisture resistance. For versatility, quality rubber with a steel deployant clasp permits rapid transitions between formal settings and water sports.

Remove the watch from your wrist and position the case face-up. Obtain a spring bar tool, available from watch retailers or Casati Milano. Insert the curved end of the tool into the small hole beneath each lug, applying gentle upward pressure to release the internal spring tension. Once loosened, extract the pin completely and slide the old strap outward. Align the new strap with the lug hole, then reinsert the pin, ensuring it clicks firmly into place. Repeat on the opposite lug. To avoid the risk of case scratching, have Casati Milano perform the replacement during an atelier consultation.

Yes, provided they strictly respect the 20mm lug width specification. Many manufacturers produce straps in this size, but quality and construction vary enormously. An inexpensive strap in synthetic material fails to match the technical and aesthetic dignity of a Patek Philippe; we recommend investing in natural leather, vegetable-tanned hide, or quality rubber, with robust stitching and precise finishing. Casati Milano manufactures bespoke straps, allowing you to personally select leather in the atelier.

A quality leather strap—alligator, calf, or shell cordovan—typically lasts 3-5 years with moderate daily wear. Lifespan depends on exposure to moisture, perspiration, sunlight, and frequency of use. A well-maintained strap, stored in a dry location and conditioned annually, can extend its life to 7-10 years. Natural leather, unlike synthetics, adapts to the wrist over time, delivering increasing comfort and stability. Casati Milano offers an 18-month warranty on manufacturing defects and can regenerate or replace worn straps at contained cost.