Seiko Cal. 4431 - 529

Seiko 4431-529

This Solar model from 1965 features a 35mm Hardlex-Coated Steel case. Powered by the 4431 caliber with 22j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-59e7f50dfa8a]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
12.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Green
Jewels
22j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1965

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