Seiko Tuna
Nicknamed for the shrouded, canister-like case protecting the crystal and crown gasket on Seiko's most extreme professional divers, starting with the automatic 6159-7010 in 1975.
← Seiko
Nicknamed for the shrouded, canister-like case protecting the crystal and crown gasket on Seiko's most extreme professional divers, starting with the automatic 6159-7010 in 1975.