![The evolution of the Hamilton railroad grade pocket watch. A 1912 992 on the left and a 1946 992B on the right. : r/pocketwatch The evolution of the Hamilton railroad grade pocket watch. A 1912 992 on the left and a 1946 992B on the right. : r/pocketwatch](https://i.redd.it/3twkh82agxib1.jpg)
The evolution of the Hamilton railroad grade pocket watch. A 1912 992 on the left and a 1946 992B on the right. : r/pocketwatch
![Hamilton Railroad Grade 992B Housed in Model A Case with Rare Double Time Zone Hands - The Pocket Watch Guy Hamilton Railroad Grade 992B Housed in Model A Case with Rare Double Time Zone Hands - The Pocket Watch Guy](https://www.thepocketwatchguy.com/wp-content/uploads/2021/07/4-1-scaled.jpg)
Hamilton Railroad Grade 992B Housed in Model A Case with Rare Double Time Zone Hands - The Pocket Watch Guy
![Hamilton Antique 10 Size 21 Jewel Mechanical Pocket Watch... for £1,021 for sale from a Seller on Chrono24 Hamilton Antique 10 Size 21 Jewel Mechanical Pocket Watch... for £1,021 for sale from a Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/32498932-sr6ffpqn4ax91rrvrnbt5qpn-ExtraLarge.jpg)
Hamilton Antique 10 Size 21 Jewel Mechanical Pocket Watch... for £1,021 for sale from a Seller on Chrono24
![Hamilton Railroad Grade 992B Housed in Model A Case with Rare Double Time Zone Hands - The Pocket Watch Guy Hamilton Railroad Grade 992B Housed in Model A Case with Rare Double Time Zone Hands - The Pocket Watch Guy](https://www.thepocketwatchguy.com/wp-content/uploads/2021/07/1-1.jpg)