Seiko Cal. 6331 - 738

The Seiko 6331-738 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-d4ea24e0a892]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1991

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