AndCavanaugh

Patek's journey from the 70s to present day resulted in automatic movements such as the 310, 315, 324, and 26-330. Each iteration had improvements and changes, including different balance systems, win

The 'Universelle' or 'Universal-Uhr' watch is a complicated German piece that is now the centerpiece of Audemars Piguet's museum. Originally signed by Union, Marcus Margulies purchased it in 1993, rep

The article explains the differences between Grand Strike (GS) and Petite Strike (PS) mechanisms in high-end clockwatches, such as those by Cesar Racine and JLC. The PS mode only strikes on the new ho

A 12-year-old girl was severely injured by a mail bomb addressed to her father, a Patek Philippe employee. The bomb, hidden in a milk carton, caused the girl to undergo a 6-hour surgery but she is exp

James Schulz's 1930 wristwatch was the first to combine a chronograph, minute repeater, and perpetual calendar in a 29mm case. The AP Grande Complication Automatique introduced in 1987 features a more

Patek Philippe introduced the R27 repeater movement in 1989, with options for self-winding and tourbillon versions. The tourbillon model featured a unique gold third wheel resembling a rounding-up mac

Estimates of Patek Philippe's annual production over time, with initial figures from 1895 and 1915. Other data collected from various sources.

Nine Patek Philippe Perpetual Calendars with varying levels of indications, ranging from basic date display to complex moon phase cycles. Manufacturers such as D.L. Golay and Victorin Piguet contribut

Note: I was asked to post my article directly on Watchprosite instead of linking to an external site as I had originally. The original post has been removed. A split seconds function allows for multip