Seiko Cal. 6645 - 912

The Seiko 6645-912 represents an important milestone in Seiko's 1971 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-c71ed64454bb]

Also known as: Monster, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1971

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