Seiko Cal. 3891 - 331

Released in 1980, the Cal. 3891 with design code 331 was part of Seiko's domestic market collection. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-eaa0078bfc95]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1980

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