Seiko Cal. 5637 - 709

The Seiko 5637-709 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-005dbac934af]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1970

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