Here is an extremely rare vintage 1986 Seiko "Ashtray" 600m Professional Tuna Diver Watch 7C46-6009 in stainless steel. It houses year 1986 the very first 7C46 7-Jewel high-torque quartz movement and currently runs with a precision around +5~10s per month. All parts of this watch are original. The bezel insert sees many usage markers but in general the watch is in good condition with clean dial, hands and case back, as well as the original Z22 rubber band. The "Ashtray" model belongs to the famous Seiko Tuna family and was the first-generation 7C46 600m Professional Tuna. It ran only for a very short period from 1986 before the shrouded-style Tuna dominated. The "Ashtray" is a rather unique piece in the Seiko Tuna family and one-of-a-kind in professional diver's watch world. (Note that the Seiko 7548 diver's watch in the last picture is for size comparison only and not part of package.)