Seiko Cal. 6347 - 400

The Seiko 6347-400 represents an important milestone in Seiko's 1978 lineup. Powered by the 6347 caliber with 36j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-9147f1eb8fb1]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1978

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