Seiko Cal. 5637 - 157

The Seiko 5637-157 represents an important milestone in Seiko's 1966 lineup. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-b1f5ec008a80]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1966

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