Seiko Cal. 3858 - 647

Seiko 3858-647

This Solar model from 1975 features a 35mm Hardlex-Coated Steel case. Powered by the 3858 caliber with 34j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-8fd2c95c3e60]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1975

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