As a fellow "old" painter, I use these.
https://www.amazon.com/YOCTOSUN-Magnifying-Glasses-Magnifier-Headband/dp/B09M8CXFF9/ref=mp_s_a_1_1_sspa?crid=1T04D99A68FI0&keywords=watchmaker+glasses&qid=1684492860&sprefix=watchmaker+g%2Caps%2C357&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyN09NVEZTWEpPMjdRJmVuY3J5cHRlZElkPUEwNDI5NTA2MkVUU0pRWEVIU1hQSiZlbmNyeXB0ZWRBZElkPUEwMjA5NzEyM0VSNlM5S0s4VzMwWiZ3aWRnZXROYW1lPXNwX3Bob25lX3NlYXJjaF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl