Seiko Cal. 6378 - 866

The 6378-866 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6378 caliber with 22j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-2a158a285be1]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1978

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