Seiko Cal. 5644 - 520

The Seiko 5644-520 represents an important milestone in Seiko's 1988 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-7c68426e13c8]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1988

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