Seiko Cal. 6640 - 853

The Seiko 6640-853 represents an important milestone in Seiko's 1984 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-924cb7563db6]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1984

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