Seiko Cal. 6689 - 378

The Seiko 6689-378 represents an important milestone in Seiko's 1982 lineup. Powered by the 6689 caliber with 34j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-5bd1a520bbb7]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1982

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