Seiko Cal. 6639 - 828

Seiko 6639-828

The Seiko 6639-828 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-bfb34283d834]

Also known as: UFO, Golden Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
9.2mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Green
Jewels
33j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1977

Related Models

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