Strap for Calatrava 4899/901G White Gold / Blue

The lug width of the Patek Philippe Calatrava 4899/901G-001 is 19 mm. This measurement represents the distance between the upper and lower lugs of the case and is the definitive construction specification that determines strap compatibility. To verify correctly, measure the internal space between the lugs using a digital calliper.

Alligator is the natural choice for the Calatrava 4899/901G-001: the regular grain of the leather reflects the light of the white gold case, creating aesthetic harmony. Recommended colours: dark brown (cognac), black and navy blue. Valid alternatives include shell cordovan, which develops a noble patina over time, and vegetable-tanned calf for those preferring a sustainable choice without visual compromise.

The Calatrava 4899/901G-001 uses standard 19 mm spring bars. To change the strap: remove the pins using a spring bar tool (small dedicated lever), gently extract the old strap, insert the new spring bars into the case lugs, then slide the new strap onto the pins until they click into place. If you are not experienced, the Casati Milano service performs the change in the atelier with personalised guidance.

Yes, any strap with a 19 mm lug width is mechanically compatible with the Calatrava 4899/901G-001. However, we recommend straps made with fine materials (alligator, shell cordovan, calf) that respect the formal aesthetics of the Calatrava. Avoid low-quality rubber or plastic straps: the Calatrava deserves authentic leather with artisanal craftsmanship.

A high-quality artisanal alligator strap lasts an average of 7–10 years with daily use. Durability depends on sun exposure, perspiration, cleaning frequency and the tanning process of the leather. Shell cordovan, being more compact, can last 12–15 years. To extend the life of the strap, keep the leather dry, avoid prolonged exposure to moisture and apply a leather conditioner every 6 months.