![Patek Philippe | Reference 3971, A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication and snap on sapphire crystal display back, Made in 1988 | 百達翡麗 Patek Philippe | Reference 3971, A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication and snap on sapphire crystal display back, Made in 1988 | 百達翡麗](https://sothebys-md.brightspotcdn.com/dims4/default/9d48f7c/2147483647/strip/true/crop/2000x2000+0+0/resize/2048x2048!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F02%2Fe4%2F7eefc9cd4f36ac06e0af68e5c492%2F1156hk1099-btqkk-040-11-1.jpg)
Patek Philippe | Reference 3971, A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication and snap on sapphire crystal display back, Made in 1988 | 百達翡麗
![Patek Philippe 3971/E 3971 Perpetual Calendar Chronograph Rose Gold "TIFFANY & CO" UNIQUE (36184) | European Watch Co. Patek Philippe 3971/E 3971 Perpetual Calendar Chronograph Rose Gold "TIFFANY & CO" UNIQUE (36184) | European Watch Co.](https://images.europeanwatch.com/images-sold/Patek-Philippe-3971/E-3971-Perpetual-Calendar-Chronograph-Rose-Go-36184-5.jpg)
Patek Philippe 3971/E 3971 Perpetual Calendar Chronograph Rose Gold "TIFFANY & CO" UNIQUE (36184) | European Watch Co.
![Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987 Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987](https://www.bachmann-scher.de/fileadmin/watches/017020/patek-philippe-perpetual-calendar-chronograph-sapphire-snap-back-ref-3971-18k-yellow-gold-box-extract-bj-1987-c.jpg)
Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987
![Patek Philippe | Reference 3971, A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication and snap on sapphire crystal display back, Made in 1988 | 百達翡麗 Patek Philippe | Reference 3971, A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication and snap on sapphire crystal display back, Made in 1988 | 百達翡麗](https://sothebys-md.brightspotcdn.com/dims4/default/7064cd2/2147483647/strip/true/crop/2000x2000+0+0/resize/2048x2048!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F70%2F5f%2F4e3395de4322ab9bff98d48c9f85%2F1077hk1099-btqkk-040-11-3.jpg)
Patek Philippe | Reference 3971, A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication and snap on sapphire crystal display back, Made in 1988 | 百達翡麗
![Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987 Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987](https://www.bachmann-scher.de/fileadmin/watches/017020/uhr-aufmacherbild.jpg)
Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987
![PATEK PHILIPPE, REF. 3971, OPALIN DORE DIAL, ORIGINAL CERTIFICATE, YELLOW GOLD | | Geneva,November 6-7, 2021 PATEK PHILIPPE, REF. 3971, OPALIN DORE DIAL, ORIGINAL CERTIFICATE, YELLOW GOLD | | Geneva,November 6-7, 2021](https://antiquorum-swiss-assets.s3-us-west-2.amazonaws.com/images/344/lots/146/146_2.jpg)
PATEK PHILIPPE, REF. 3971, OPALIN DORE DIAL, ORIGINAL CERTIFICATE, YELLOW GOLD | | Geneva,November 6-7, 2021
![Patek Philippe 3971/E 3971 Perpetual Calendar Chronograph Rose Gold "TIFFANY & CO" UNIQUE (36184) | European Watch Co. Patek Philippe 3971/E 3971 Perpetual Calendar Chronograph Rose Gold "TIFFANY & CO" UNIQUE (36184) | European Watch Co.](https://images.europeanwatch.com/images-sold/Patek-Philippe-3971/E-3971-Perpetual-Calendar-Chronograph-Rose-Go-36184-7.jpg)
Patek Philippe 3971/E 3971 Perpetual Calendar Chronograph Rose Gold "TIFFANY & CO" UNIQUE (36184) | European Watch Co.
![PATEK PHILIPPE. A VERY RARE 18K PINK GOLD PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH MOON PHASES, 24 HOUR, LEAP YEAR INDICATION AND CERTIFICATE OF ORIGIN PATEK PHILIPPE. A VERY RARE 18K PINK GOLD PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH MOON PHASES, 24 HOUR, LEAP YEAR INDICATION AND CERTIFICATE OF ORIGIN](https://www.christies.com/img/LotImages/2021/GNV/2021_GNV_20024_0036_000(patek_philippe_a_very_rare_18k_pink_gold_perpetual_calendar_chronograp063928).jpg?mode=max)
PATEK PHILIPPE. A VERY RARE 18K PINK GOLD PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH MOON PHASES, 24 HOUR, LEAP YEAR INDICATION AND CERTIFICATE OF ORIGIN
![Reference 3971 'Snap-on back' | A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours and leap year indication | Made in 1987 | 百達翡麗| 型號3971黃金| 萬年曆計時腕錶,備月相、24小時、閏年顯示及撳扣式錶背蓋,製作 ... Reference 3971 'Snap-on back' | A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours and leap year indication | Made in 1987 | 百達翡麗| 型號3971黃金| 萬年曆計時腕錶,備月相、24小時、閏年顯示及撳扣式錶背蓋,製作 ...](https://sothebys-md.brightspotcdn.com/dims4/default/ceb88fc/2147483647/strip/true/crop/2000x2000+0+0/resize/1024x1024!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2Fwebnative%2Fimages%2F02%2F8f%2Fff10c9034150b65512c82f02987f%2Fge2301-cn67y-t1-01.jpg)
Reference 3971 'Snap-on back' | A yellow gold perpetual calendar chronograph wristwatch with moon phases, 24 hours and leap year indication | Made in 1987 | 百達翡麗| 型號3971黃金| 萬年曆計時腕錶,備月相、24小時、閏年顯示及撳扣式錶背蓋,製作 ...
![Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987 Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987](https://www.bachmann-scher.de/fileadmin/watches/017020/patek-philippe-perpetual-calendar-chronograph-sapphire-snap-back-ref-3971-18k-yellow-gold-box-extract-bj-1987-a.jpg)
Patek Philippe Perpetual Calendar Chronograph SAPPHIRE SNAP BACK Ref-3971 18k Yellow Gold Box Extract Bj-1987
![Patek Philippe, Extremely Rare and Attractive… | Lot 169, Exclusive Timepieces | Monaco Legend Auctions Patek Philippe, Extremely Rare and Attractive… | Lot 169, Exclusive Timepieces | Monaco Legend Auctions](https://www.monacolegendauctions.com/writable/media/auction/0024-0169/0169-00_v719.jpg)