Seiko Cal. 3889 - 990

Seiko 3889-990

This Solar model from 1977 features a 46mm Hardlex-Coated Steel case. Powered by the 3889 caliber with 21j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-91ff31fb5e74]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
12.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
50m
Dial Color
Silver
Jewels
21j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1977

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