Seiko Cal. 4431 - 328

Seiko 4431-328

This Quartz model from 1970 features a 40mm Gold-Plated case. Powered by the 4431 caliber with 22j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-5dd72816fd20]

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
15.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
130m
Dial Color
Navy
Jewels
22j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1970

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