Seiko Cal. 6147 - 740

The Seiko 6147-740 represents an important milestone in Seiko's 1975 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-2a41349231e6]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1975

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