Seiko Cal. 5637 - 259

Released in 1988, the Cal. 5637 with design code 259 was part of Seiko's domestic market collection. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-eb180d18139a]

Also known as: Helmet, Flighty

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1988

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