Circa 1927-1932.
Here is an excellent example of one of Hamilton Watch Company's geometric models called the Tonneau which features an engraved 14K solid green gold case accompanied by a refinished two-tone sterling silver luminous dial with luminous skeleton hands. This is a beautiful wristwatch that is powered by a 6/0 size grade 987 manual hand wind movement with 17 jewels that has been serviced and kept good time over a 24 hour period. This is the real deal - a classic model for any Hamilton collection. The inside snap back case is marked: H, 6/0, Wadsworth, Quality, 14 Karat Solid Gold, 0120340. This timepiece measures approximately 28mm in width (excluding the crown) x 34mm from lug end to end.
Here is an excellent example of one of Hamilton Watch Company's geometric models called the Tonneau which features an engraved 14K solid green gold case accompanied by a refinished two-tone sterling silver luminous dial with luminous skeleton hands. This is a beautiful wristwatch that is powered by a 6/0 size grade 987 manual hand wind movement with 17 jewels that has been serviced and kept good time over a 24 hour period. This is the real deal - a classic model for any Hamilton collection. The inside snap back case is marked: H, 6/0, Wadsworth, Quality, 14 Karat Solid Gold, 0120340. This timepiece measures approximately 28mm in width (excluding the crown) x 34mm from lug end to end.