Seiko Cal. 5644 - 242

The Seiko 5644-242 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-fd776fca74f6]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1970

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