Seiko Cal. 6644 - 527

The Seiko 6644-527 represents an important milestone in Seiko's 1968 lineup. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-4b7403968560]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1968

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