Seiko Cal. 6645 - 813

The Seiko 6645-813 represents an important milestone in Seiko's 1967 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-5fcfa667a3bb]

Also known as: Rally, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1967

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