![Reference 3970 | A highly important and possibly unique white gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication, Breguet numerals at 12 o'clock and special salmon tachymetre Reference 3970 | A highly important and possibly unique white gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication, Breguet numerals at 12 o'clock and special salmon tachymetre](https://sothebys-md.brightspotcdn.com/dims4/default/47ad03a/2147483647/strip/true/crop/2000x2000+0+0/resize/385x385!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2Fce%2F39%2F59bbaf904d62a14191f2b9285f81%2Fhk1149-c2vs8-015-05-2-t1.jpg)
Reference 3970 | A highly important and possibly unique white gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication, Breguet numerals at 12 o'clock and special salmon tachymetre
![Patek Philippe Vintage Ref.3970/002 Perpetual Calendar... for Price on request for sale from a Seller on Chrono24 Patek Philippe Vintage Ref.3970/002 Perpetual Calendar... for Price on request for sale from a Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/25355937-jhazgdwdnil62uu4ihgz9mmb-ExtraLarge.jpg)
Patek Philippe Vintage Ref.3970/002 Perpetual Calendar... for Price on request for sale from a Seller on Chrono24
![Reference 3970 | A highly important and possibly unique white gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication, Breguet numerals at 12 o'clock and special salmon tachymetre Reference 3970 | A highly important and possibly unique white gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication, Breguet numerals at 12 o'clock and special salmon tachymetre](https://sothebys-md.brightspotcdn.com/dims4/default/be17417/2147483647/strip/true/crop/2000x2000+0+0/resize/2048x2048!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2F31%2Fb5%2Fd2cafd8841a98787b06075de4563%2Fhk1149-c2vs8-015-05-1-t1.jpg)
Reference 3970 | A highly important and possibly unique white gold perpetual calendar chronograph wristwatch with moon phases, 24 hours, leap year indication, Breguet numerals at 12 o'clock and special salmon tachymetre
![Vintage Patek Philippe Ref.3970 18K Rose Gold Chronograph Perpetual Calendar from 1989 – Now at 2Tone Vintage Watches Singapore. Vintage Patek Philippe Ref.3970 18K Rose Gold Chronograph Perpetual Calendar from 1989 – Now at 2Tone Vintage Watches Singapore.](https://www.2tonevintage.com/wp-content/uploads/2021/12/patek-philippe-ref3970e-rose-gold-1989-img-cat1.jpg)