Vintage Zodiac Stainless Steel SST 36000 Seawolf. The case is stainless steel and measures 39mm by 43mm in diameter featuring a inner rotating bezel with 60 minute graduation and black dial with day-date wheel and stainless steel baton hour markers. The caseback is engraved "ZODIAC SEAWORLD WATER-TESTED 20 ATM ESPECIALLY". Condition: (Good).