Seiko Cal. 6644 - 661

The Seiko 6644-661 represents an important milestone in Seiko's 1974 lineup. Powered by the 6644 caliber with 27j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-a960126aab52]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1974

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