Seiko Cal. 5630 - 709

The Seiko 5630-709 represents an important milestone in Seiko's 1976 lineup. Powered by the 5630 caliber with 18j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-76317cca2604]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1976

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