Seiko Cal. 3863 - 978

The Seiko 3863-978 represents an important milestone in Seiko's 1969 lineup. Powered by the 3863 caliber with 30j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-53c89edc3392]

Also known as: Monster, Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1969

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