Seiko Cal. 5648 - 331

The Seiko 5648-331 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-05466125a4d9]

Also known as: Monster, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1983

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