Seiko Cal. 5630 - 624

The Seiko 5630-624 represents an important milestone in Seiko's 1971 lineup. Powered by the 5630 caliber with 18j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-b75a666892b5]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1971

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