Seiko Cal. 6397 - 656

The Seiko 6397-656 represents an important milestone in Seiko's 1980 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-22e7d6d98a98]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1980

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