![Bonhams : Patek Philippe. An extremely fine and very rare 18K gold keyless wind open face minute repeating perpetual calendar pocket watch with moon phase and 24 hour indication Ref 962/1J-001, Purchased Bonhams : Patek Philippe. An extremely fine and very rare 18K gold keyless wind open face minute repeating perpetual calendar pocket watch with moon phase and 24 hour indication Ref 962/1J-001, Purchased](https://img1.bonhams.com/image?src=Images/live/2022-05/25/25182696-16-5.jpg&height=430&quality=90)
Bonhams : Patek Philippe. An extremely fine and very rare 18K gold keyless wind open face minute repeating perpetual calendar pocket watch with moon phase and 24 hour indication Ref 962/1J-001, Purchased
![Pavel Bure. A Gold Perpetual Calendar Minute Repeater Chrongraph Full Hunter Pocket Watch C1900 | Watch Centre Pavel Bure. A Gold Perpetual Calendar Minute Repeater Chrongraph Full Hunter Pocket Watch C1900 | Watch Centre](https://www.watchcentre.com/media/catalog/product/cache/863e1d5ce52d3ab34acca7e4d6496575/a/0/a0384b-a2.jpg)
Pavel Bure. A Gold Perpetual Calendar Minute Repeater Chrongraph Full Hunter Pocket Watch C1900 | Watch Centre
![Reference 1800BA | A yellow gold perpetual calendar open faced watch with moon phases and leap year indication, Circa 2000 | Important Watches | 2023 | Sotheby's Reference 1800BA | A yellow gold perpetual calendar open faced watch with moon phases and leap year indication, Circa 2000 | Important Watches | 2023 | Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/a919054/2147483647/strip/true/crop/2000x2000+0+0/resize/4096x4096!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2Fwebnative%2Fimages%2F0b%2Fad%2F132897ad4ed09b7bc41e5ddf51fe%2Fn11273-cv753-01.jpg)
Reference 1800BA | A yellow gold perpetual calendar open faced watch with moon phases and leap year indication, Circa 2000 | Important Watches | 2023 | Sotheby's
![Something To Consider: Patek Philippe Bought The First Perpetual Calendar Watch In History For Less Than They Charge For Any Of Their Current Perpetuals, Because Nobody Else Was Paying Attention - Hodinkee Something To Consider: Patek Philippe Bought The First Perpetual Calendar Watch In History For Less Than They Charge For Any Of Their Current Perpetuals, Because Nobody Else Was Paying Attention - Hodinkee](https://hodinkee.imgix.net/uploads/images/1481994499933-irt9o7m90s-886b3cc7a85676c788520a3cf6739d0a/Screen_Shot_2016-12-17_at_12.06.33_PM.png?ixlib=rails-1.1.0&fm=jpg&q=55&auto=format&usm=12&fit=crop&ch=Width%2CDPR%2CSave-Data&alt=)
Something To Consider: Patek Philippe Bought The First Perpetual Calendar Watch In History For Less Than They Charge For Any Of Their Current Perpetuals, Because Nobody Else Was Paying Attention - Hodinkee
![POCKET WATCH WITH PERPETUAL CALENDAR, Le ROY & FILS à Paris, ca. 1900. Yellow gold 18K. Polished case 12870, dust cover signed Le Roy & Fils, H.gers de la marine Palais Royal, POCKET WATCH WITH PERPETUAL CALENDAR, Le ROY & FILS à Paris, ca. 1900. Yellow gold 18K. Polished case 12870, dust cover signed Le Roy & Fils, H.gers de la marine Palais Royal,](https://www.kollerauktionen.ch/CatCache/catcache.3/pictures/59456/59456_M_1.jpg)
POCKET WATCH WITH PERPETUAL CALENDAR, Le ROY & FILS à Paris, ca. 1900. Yellow gold 18K. Polished case 12870, dust cover signed Le Roy & Fils, H.gers de la marine Palais Royal,
![Bonhams : Audemars Piguet. A fine and rare early 20th Century 18ct gold keyless wind perpetual calendar pocket watch with moonphase Case and Movement No.33532, Circa 1925 Bonhams : Audemars Piguet. A fine and rare early 20th Century 18ct gold keyless wind perpetual calendar pocket watch with moonphase Case and Movement No.33532, Circa 1925](https://img1.bonhams.com/image?src=Images/live/2014-11/05/94560287-5-1.jpg&height=430&quality=90)