Seiko Cal. 6664 - 688

Released in 1988, the Cal. 6664 with design code 688 was part of Seiko's domestic market collection. Powered by the 6664 caliber with 20j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-d109025d6f77]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1988

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