Strap for Calatrava Weekly Calendar Stainless Steel / Silver

The Patek Philippe Calatrava 5212A-001 has a lug width of exactly 20mm. This measurement must be verified by positioning a digital calliper between the lugs where the strap attaches. It is crucial not to confuse the lug width with the total strap width, which is typically smaller.

We recommend alligator with medium grain in tobacco or dark brown tones, or shell cordovan for those preferring superior patina and durability. Calf leather with vegetable tanning is an excellent artisanal alternative, developing character over time. Avoid excessive thickness that would overwhelm the proportions of the 40mm case.

To change the strap, obtain a spring bar tool. Remove the watch and place it on a soft surface to prevent scratches. Insert the tool under the metal lug at the 6 o'clock side, apply gentle pressure to retract the internal spring, and extract the lug. Repeat on the opposite side. Attach the new strap by reversing the procedure.

Yes, any strap with 20mm lug width is compatible. We recommend artisanal straps from specialised suppliers, where you can select leather type, thickness, and buckle style (deployant or standard) according to your preferences. Casati Milano also offers personalised consultation services by appointment.

An artisanal quality leather strap, subject to moderate daily use, typically lasts 3–5 years before replacement is necessary. Durability depends on ambient humidity, sun exposure, frequency of use, and maintenance. Shell cordovan or vegetable-tanned leather tend to have longer lifecycles, whilst more delicate leathers require greater care.