seiko chronometer center second 1950s Rolleiflex a crown guard and an

a crown guard and an additional dial

エクスプローラー Iは1953年に登場し、3/6/9がアラビア数字・日付表示の無い非常にシンプルなデザインが特徴でした。

and its main feature is the design of the dial

夜光が落ちた風車のような時分針と真っ赤な秒針、赤いカレンダーがブラックのダイアルと良い感じにマッチしています。

seiko chronometer center second 1950s Rolleiflex a crown guard and an(3)19501 30mm Brand: SEIKO Model: Chronometer Center Second Ref: N A Serial: 101038 Year: 1950s Movement: Manual 10 Jewels Case: 30mm Material: CRP SS Strap: 16mm Includes: Leather Strap Description SUPER() 195010 510020 30mm 2 Chronometer() 3 5 Warranty OH4 OH6() Description In Japan, the first center second watch was revealed in 1950 and this watch was also produced in early 1950s. Beautiful dial with Breguet numerals and blue steel hands. Small