Seiko Cal. 5630 - 500

The Seiko 5630-500 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-51bb4285b44f]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1971

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