Seiko Cal. 5636 - 649

The Seiko 5636-649 represents an important milestone in Seiko's 1973 lineup. It features a Silver dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-a363e9437a84]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1973

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