Seiko Cal. 5640 - 430

Seiko 5640-430

This Solar model from 1984 features a 38mm Hardlex-Coated Steel case. Powered by the 5640 caliber with 35j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-9a60604879e3]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
12.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
140m
Dial Color
Green
Jewels
35j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1984

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