Seiko Cal. 5639 - 722

The Seiko 5639-722 represents an important milestone in Seiko's 1965 lineup. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-d032df526278]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1965

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