Seiko Cal. 5617 - 623

The Seiko 5617-623 represents an important milestone in Seiko's 1990 lineup. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c20055dec58b]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1990

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