Seiko Cal. 4431 - 820

Seiko 4431-820

This Automatic model from 1997 features a 45mm Gold-Plated case. Powered by the 4431 caliber with 18j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-3207860c25c0]

Also known as: Samurai, Helmet

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
15.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1997

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seikata-wm-3207860c25c0