Omega Seamaster Automatic Omega, No. 42393505, Ref. 166.0251/366.0858. Made in 1980. Fine and rare, tonneau-shaped, center seconds, self-winding, water-resistant, stainless steel diver's wristwatch with date and an integral stainless steel Omega link

Omega Seamaster Automatic Omega, No. 42393505, Ref. 166.0251/366.0858. Made in 1980. Fine and rare, tonneau-shaped, center seconds, self-winding, water-resistant, stainless steel diver's wristwatch with date and an integral stainless steel Omega link