Seiko Cal. 7031 - 993

Released in 1970, the Cal. 7031 with design code 993 was part of Seiko's domestic market collection. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-c6a7dc2575bd]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1970

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