Seiko Cal. 4430 - 939

Seiko 4430-939

This Automatic model from 1971 features a 37mm Two-Tone case. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-bcdb7a9aa366]

Also known as: UFO

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
37mm
Case Thickness
12.4mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
170m
Dial Color
Green
Jewels
20j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1971

Related Models

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