Seiko Cal. 5638 - 614

The Seiko 5638-614 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-76b49e2b0e34]

Also known as: Sumo, Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1970

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