Seiko Cal. 3820 - 409

Seiko 3820-409

This Automatic model from 1977 features a 43mm Two-Tone case. Powered by the 3820 caliber with 24j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-02bf10f6930e]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
43mm
Case Thickness
10.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1977

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