Seiko Cal. 5637 - 786

The 5637-786 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-3a76c9fb56f7]

Also known as: Shogun, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1987

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