Circa 1935.
Another limited release model by Hamilton is this 14K yellow gold-filled Calvin featuring an applied gold numeral dial. Produced for a single year, this Calvin sets and winds smoothly powered by a 14/0 size Hamilton grade 980 manual hand wind movement with 17 jewels that has been serviced and kept excellent time over a 24 hour period. The inner case reads: Keystone, J.Boss, 14K Gold Filled, 56118. The watch is fitted with a new glass crystal and leather straps in black. This is a sharp looking wristwatch measures approximately 22mm in width (not including the crown) x 37mm from lug end to lug end.
Another limited release model by Hamilton is this 14K yellow gold-filled Calvin featuring an applied gold numeral dial. Produced for a single year, this Calvin sets and winds smoothly powered by a 14/0 size Hamilton grade 980 manual hand wind movement with 17 jewels that has been serviced and kept excellent time over a 24 hour period. The inner case reads: Keystone, J.Boss, 14K Gold Filled, 56118. The watch is fitted with a new glass crystal and leather straps in black. This is a sharp looking wristwatch measures approximately 22mm in width (not including the crown) x 37mm from lug end to lug end.