Seiko Cal. 6344 - 691

The Seiko 6344-691 represents an important milestone in Seiko's 1971 lineup. Powered by the 6344 caliber with 25j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-aeb7987026fd]

Also known as: Bullhead, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1971

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