Early Second Series Patek Philippe 3940P
Patek Philippe 3940 Perpetual Calendar Watch
Reference 3940, A yellow gold perpetual calendar wristwatch with moon phase and leap year indication, Circa 1989, Important Watches: Part II, 2023
The Patek Philippe Grand Complication Debate
Patek Philippe 3940 Read our in-depth article about Patek's 3940 – A COLLECTED MAN
Reference 3940 'First Series' A yellow gold perpetual calendar wristwatch with moon phases, 24-hour, and leap year indication, Made in 1987, Fine Watches, 2021
Second Series 3940J Patek Philippe Perpetual Calendar
Patek Philippe - Grande Complication - Ref. Patek Philippe - 3940
Patek Philippe 3940, a Little Sleeping Giant – The Horology Club
Patek Philippe 3940: Deep Dive
Patek 3940R] latest addition to the collection : r/Watches
3940J, Yellow Gold
Patek Philippe 3940 Perpetual Calendar Watch
Review: The Patek Philippe Ref. 3940J - A Classical Beauty Revisited
Patek Philippe 3940 Read our in-depth article about Patek's 3940 – A COLLECTED MAN