Seikomatic 30 jewels automatic Cal.603 15031DE / case no. 2014230 , made in Japan.
Seikomatic 30 jewels automatic Cal.603 15031DE / case no. 2014230 , made in Japan.,Seikomatic 30 jewels automatic Cal.603 15031DE / case no. 2014230 , made in Japan.,Origins of the Seikomatic: A 30 jewel Seikomatic 15031D from January 1963 | Adventures in Amateur Watch Fettling,Origins of the Seikomatic: A 30 jewel Seikomatic 15031D from January 1963 | Adventures in Amateur Watch Fettling,SeikoMatic Slim Date Ref.840990 Automatic Diashock 30Jewels Man's Watch Vintage