Seiko Cal. 3891 - 986

Released in 1976, the Cal. 3891 with design code 986 was part of Seiko's domestic market collection. Powered by the 3891 caliber with 18j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-f32af14347bf]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1976

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