Seiko Cal. 6331 - 658

The Seiko 6331-658 represents an important milestone in Seiko's 1992 lineup. It features a Cream dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-ef3c02b452fe]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1992

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