seiko seikomatic blue yacht j13023e 1960s Cal.3185 The current arm circumference is

The current arm circumference is 17-17

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。

The movement is fully serviced by watchmaker in Dec 2017

文字盤はホワイトダイアルにブレゲ数字のアラビアインデックス、こちらもケース同様にピンクゴールド製です。3/9/12時のみがポイントになっているのも特徴的。

seiko seikomatic blue yacht j13023e 1960s Cal.3185 The current arm circumference isThis 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