Seiko Cal. 6682 - 663

The 6682-663 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6682 caliber with 18j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-fcf33238d28f]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1978

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