Seiko Cal. 6378 - 983

The Seiko 6378-983 represents an important milestone in Seiko's 1980 lineup. Powered by the 6378 caliber with 23j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-5ad7096518e2]

Also known as: Silverwave, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1980

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