Seiko Cal. 5620 - 731

The Seiko 5620-731 represents an important milestone in Seiko's 1979 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-1def04e0ef47]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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