Seiko Cal. 5634 - 254

The Seiko 5634-254 represents an important milestone in Seiko's 1980 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-572b8a410081]

Also known as: Helmet, Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1980

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