Seiko Cal. 5668 - 864

The Seiko 5668-864 represents an important milestone in Seiko's 1968 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-5b78e178880d]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1968

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