Patek Philippe · Grand Complications
Strap for Perpetual Calendar Chronograph 1518
Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.
Integrated bracelet
The Patek Philippe Grand Complications 1518J is designed with a bracelet integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.
Case diameter35 mm
Reference1518J
FamilyGrand Complications
MovementPatek Philippe caliber 13'''130 Q
Hours, Minutes, Small Seconds | Date, Day, Month, Perpetual Calendar | Chronograph, Column wheel
CaseYellow Gold
The Grand Complications 1518J, seen from the bench
The Perpetual Calendar Chronograph 1518 is the first series-produced chronograph with perpetual calendar in watchmaking history, manufactured from 1941 to 1954 in only 281 examples. This yellow gold specimen measures 35mm and combines moon phases, complete calendar, and chronograph functions. The watch features non-standard lugs requiring bespoke strap adaptation by Atelier Casati Milano.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only