Seiko Cal. 6678 - 389

The Seiko 6678-389 represents an important milestone in Seiko's 1987 lineup. Powered by the 6678 caliber with 31j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-21273119168f]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1987

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