Seiko Cal. 5670 - 644

The Seiko 5670-644 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-4f2d32e506ab]

Also known as: World Timer, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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