Seiko Cal. 7151 - 604

The Seiko 7151-604 represents an important milestone in Seiko's 1968 lineup. Powered by the 7151 caliber with 21j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-31cdfcf87a67]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1968

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