Seiko Cal. 5637 - 131

The Seiko 5637-131 represents an important milestone in Seiko's 1975 lineup. It features a White dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-c775edfa2236]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1975

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