If you are very rich, you may be able to purchase an Equation watch. They are mostly limited-edition and take years to make. The makers of these gems, of course, give little detail of their mechanics.
As far as I can see, all simulate the Equation of Time with a single cam..
Further information on their mechanisms would be appreciated.
SOME OF THE GREAT POCKET WATCHES
None of those below used computers in their design
![Breguet No. 160 Grand complication, more commonly known as the Marie-Antoinette or the Queen, started in 1782 and completed by Breguet's son in 1827](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/f3e17f6c-ed12-4a22-99c0-b7204c2a709d_rw_600.jpg?h=40c8ae1b98c21e4000fb84c4693e4260)
Breguet No. 160 Grand complication, more commonly known as the Marie-Antoinette or the Queen, started in 1782 and completed by Breguet's son in 1827
![Breguet & Fils, Paris No. 2667 - 1814](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/2b54e0a3-69c5-4dae-8c62-878fb269c1a6_rw_1200.png?h=b64249766fdd078b0866931f5bc287ad)
Breguet & Fils, Paris No. 2667 - 1814
![Breguet & Fils, No. 217 - 1800](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/e3f2c4de-26e5-4dfb-963e-28967d66b4e3_rw_1200.png?h=6c294cc72c075557db09f468a8ee2c75)
Breguet & Fils, No. 217 - 1800
![Patek Philippe - Henry Graves Supercomplication - 1932](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/e4b0f330-dcbf-4a10-8b5c-615317bb07bb_rw_1200.jpg?h=03c345bd66d0849f6927e48aed560e14)
Patek Philippe - Henry Graves Supercomplication - 1932
![George Daniels - Space Travellers’ Watch](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/42bca08d-fb6a-4f5d-a563-c079507ca4f2_rw_600.png?h=fcba32eedb70debf645da6e192ff65ba)
George Daniels - Space Travellers’ Watch
Click to enlarge and read caption
SOME MODERN EQUATION WATCHES
All of those below used computers in their design
![Breguet - Marine 5887](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/fb0f5c95-9c0f-4421-aa61-9f47feb51864_rw_600.jpg?h=91fea127db46566dc80c1fed93277e47)
Breguet - Marine 5887
![Blancpain Villeret Équation du Temps Marchante](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/0912ef51-7ee7-4e20-b3f1-4239f4de81b7_rw_1200.jpg?h=70dc38b4b0d4de607494b126ae1fb181)
Blancpain Villeret Équation du Temps Marchante
![Blancpain Calibre 3863 watch](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/ea9e2a2f-a352-4ad1-9103-3bcf460beab5_rw_1200.png?h=290805dcce1e1f224842c5cba36f4ae4)
Blancpain Calibre 3863 watch
![Luminor Panerai Equation watch](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/eba2358b-d239-46ef-9225-6f551dba783b_rw_1200.jpg?h=0f2c610acedee96d341b3fff597e1d64)
Luminor Panerai Equation watch
![Luminor Panerai Equation watch](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/fec3e7dc-ee19-47c2-a035-38b61c966356_rw_1200.png?h=9c90a4c76c41bce8131e56ee7225cd35)
Luminor Panerai Equation watch
![Luminor Panerai Equation watch](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/fc43a214-61e3-4df6-814e-6abdcf9f7fbb_rw_1200.jpg?h=b73ba36424bb52f3437f4b4d2bf16b90)
Luminor Panerai Equation watch
![Audemars Piguet Jules Audemars Equation of Time](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/9e509af6-74b0-47c4-8e15-2b2199197327_rw_1200.jpg?h=b9da4834ddaf463fd578449f00ec89f1)
Audemars Piguet Jules Audemars Equation of Time
![Jaeger-LeCoultre Master Gyrotourbillon 1 and Reverso Grande Complication à Triptyque](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/0fd218b9-1e12-4080-a61f-ac50d8e8dcef_rw_1200.jpg?h=2cb0c51f046848178cc92eecdb0a2415)
Jaeger-LeCoultre Master Gyrotourbillon 1 and Reverso Grande Complication à Triptyque
![Zenith Christophe Colomb Equation of Time](https://cdn.myportfolio.com/cf59f354b34391ef9ddbec41a1409bef/2b4ac092-bcec-4c81-921f-5c6d3d36ffcf_rw_1200.jpg?h=73c8f01ed062080ae1c25629bfcc4081)
Zenith Christophe Colomb Equation of Time
Click to enlarge and read caption