![Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/25be403/2147483647/strip/true/crop/2000x2000+0+0/resize/2048x2048!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F97%2Fd7%2F00dffe2c4201b49b13f93940ce08%2Fge2104-c3fx6-1.jpg)
Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's
![Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/482b991/2147483647/strip/true/crop/2000x1334+0+0/resize/2048x1366!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F0c%2F57%2F21f1122b4fe5a16614c252a6cee7%2Fge2104-c3fx6-10.jpg)
Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's
Found: A Patek Philippe 3448 White Gold At Sotheby's New York (Or Is It A 3450 Yellow Gold?) – The Story Of The Convertible Perpetual Calendar - Hodinkee
![Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's Ref. 3448, Yellow gold perpetual calendar wristwatch with moon phases Made in 1977 | 百達翡麗 | 3448型號黃金萬年曆腕錶備月相顯示,1977年製 | Important Watches: Part I | 2021 | Sotheby's](https://sothebys-md.brightspotcdn.com/dims4/default/f3960da/2147483647/strip/true/crop/2000x2000+0+0/resize/2048x2048!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F0a%2F89%2F84e8f2bd461ab48d45e106731f61%2Fge2104-c3fx6-3.jpg)