Seiko Cal. 5647 - 631

The Seiko 5647-631 represents an important milestone in Seiko's 1984 lineup. It features a Green dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-b8c07b011f9e]

Also known as: Rally, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1984

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