Seiko Cal. 3891 - 649

The Seiko 3891-649 represents an important milestone in Seiko's 1986 lineup. Powered by the 3891 caliber with 35j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-1f5751476a49]

Also known as: Sea Horse, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1986

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