Seiko Cal. 6688 - 763

The 6688-763 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6688 caliber with 27j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-15cec72a29e1]

Also known as: Samurai

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1971

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