Seiko Cal. 4531 - 673

Seiko 4531-673

This Hand-Winding model from 1974 features a 39mm Two-Tone case. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-2251a292b344]

Also known as: UFO, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
39mm
Case Thickness
12.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
160m
Dial Color
Green
Jewels
24j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1974

Related Models

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