Seiko Cal. 4538 - 631

Seiko 4538-631

This Automatic model from 1971 features a 36mm Gold-Plated case. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2fdf2a77063e]

Also known as: UFO, Silverwave

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
13.6mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
40m
Dial Color
Green
Jewels
35j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1971

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