Seiko Cal. 6331 - 522

The Seiko 6331-522 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-ee0ecc45e78f]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1988

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