Seiko Cal. 6378 - 662

The 6378-662 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6378 caliber with 34j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-f42ecf7678a7]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1981

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