Seiko Cal. 5637 - 442

The Seiko 5637-442 represents an important milestone in Seiko's 1985 lineup. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-b5c3d2fb4560]

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1985

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