Seiko Cal. 5639 - 830

Seiko 5639-830

The Seiko 5639-830 represents an important milestone in Seiko's 1985 lineup. Powered by the 5639 caliber with 34j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-be2d27eb8fc1]

Also known as: Monster, Silverwave

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
15.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Silver
Jewels
34j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1985

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