seiko seikomatic blue yacht j13023e 1960s Cal.3185 and adjustment technology

and adjustment technology

これはAPRIORという団体に所属していたメーカーの1973年頃から2000年頃までの時計に見られる表記で、文字盤やインデックスにゴールドなどの貴金属を使用していることを示します。

Serial: B33xxxx

The current arm circumference is 17-17

seiko seikomatic blue yacht j13023e 1960s Cal.3185 and adjustment technologyThis is a watch that is not seen very often the Seikomatic Blue Yacht. This model was only produced for only a year in 1961. The watch was rated as Standard Level Waterproof (30M) which is the first automatic watch with waterproof to 30m. This has an unusual swirl pattern to it that I have cannot remember seeing on other models. Also, the yacht engraves on caseback is only seen in this model. Warranty Professionally serviced by our watchmaker in Jan