I have a watch that my father left me, and was wondering if anyone could give me information related to its model, approximate age? The markings between the lugs are very small, but it appears to have a hallmark and the word plaque written on it. In addition, it looks like either the number 10 or 20 microns. Not 100% sure. The crystal is acrylic and the snap on back looks like brushed stainless steel. The manual movement is running and keeping fairly good time. I'd appreciate any assistance you may be able to offer.
Just found out that this watch was known as the"James Bond" model. It came with a Gruen in house made 17 jewel 510 caliber movement.