Seiko - The History of Seiko Diver's Watches -Japan's first diver's watch Japan's first diver's watch was an automatic 150m Diver's. The launch of this model marked the start of Seiko's pursuit
Seiko 6309-729A Pepsi Divers Watch Men Vintage Day Date 150M Automatic S/S #5390 - Watch1440
Mens Vintage SEIKO 150m Diver 6309-7049 Automatic Watch for sale online | eBay