Seiko Cal. 6356 - 640

The Seiko 6356-640 represents an important milestone in Seiko's 1965 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-4886bd5723a1]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1965

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