Seiko Cal. 0730 - 757

Released in 1965, the Cal. 0730 with design code 757 was part of Seiko's domestic market collection. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-ec33926de6d3]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1965

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