Hamilton revolutionized the watch world in 1957 when it introduced the first 'electric' watches. Here is one from the 1960's, the Victor II, one of the many futuristic designs from Richard Arbib, design consultant for Hamilton in that era. The yellow gold-filled asymmetrical teardrop case , 36mm at the highest x 30mm, has a mechanical movement powered by a battery instead of a mainspring. The Victor II dial has painted and applied gold hour numbers and markers and a center second sweep hand. In very good condition, 18 month warranty.