Seiko Cal. 6331 - 161

The Seiko 6331-161 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-c690568a8004]

Also known as: Shogun

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1971

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