Seiko Cal. 6689 - 378

Seiko 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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