Seiko Cal. 5647 - 521

The Seiko 5647-521 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-46307e420044]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1972

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