Circa 1935.
Produced for a single year is this Hamilton Mason featuring a 10K yellow goldfilled case and an applied gold numeral dial. Underneath the dial sits a grade 987A manual hand wind movement with 17 jewels that has been serviced and kept good time over a 24 hour period. The watch sets and winds smoothly and includes brand new leather straps in black. The inside of the back case is engraved: Keystone, J.Boss, 10K Goldfilled, 51793. This beautiful watch measures approximately 27mm wide (excluding the crown) x 36mm from lug tip to tip.
Produced for a single year is this Hamilton Mason featuring a 10K yellow goldfilled case and an applied gold numeral dial. Underneath the dial sits a grade 987A manual hand wind movement with 17 jewels that has been serviced and kept good time over a 24 hour period. The watch sets and winds smoothly and includes brand new leather straps in black. The inside of the back case is engraved: Keystone, J.Boss, 10K Goldfilled, 51793. This beautiful watch measures approximately 27mm wide (excluding the crown) x 36mm from lug tip to tip.