Seiko Cal. 5637 - 894

The 5637-894 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-7eef6dc1e043]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1976

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