Seiko Cal. 6347 - 542

The Seiko 6347-542 represents an important milestone in Seiko's 1974 lineup. Powered by the 6347 caliber with 28j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-e374bd805bdf]

Also known as: Helmet, Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1974

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