Seiko Cal. 5678 - 331

Released in 1969, the Cal. 5678 with design code 331 was part of Seiko's domestic market collection. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e5dfa2709bcf]

Also known as: Navigator, Sea Horse

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1969

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