Seiko Cal. 5639 - 835

Seiko 5639-835

This Quartz model from 1985 features a 46mm Gold-Plated case. Powered by the 5639 caliber with 31j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-e4390fac8b01]

Also known as: UFO, Navigator

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
110m
Dial Color
Champagne
Jewels
31j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1985

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