Seiko Cal. 6644 - 668

The Seiko 6644-668 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-370972b2cb19]

Also known as: UFO, Golden Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1988

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