New to me Hamilton 9721B

https://i.ibb.co/hDwPgXF/9-D2-C0832-44-FB-4-BBB-A225-B15501364-C23.jpg

https://i.ibb.co/xJ0LJkj/930-F355-B-0-E69-436-E-92-B9-0160-AEF24972.jpg