Seiko Cal. 6388 - 422

The Seiko 6388-422 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-d910c49a2819]

Also known as: Monster, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1982

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