Seiko Cal. 6639 - 306

Seiko 6639-306

This Automatic model from 1967 features a 45mm Gold-Plated case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-7d5b18ce5c20]

Also known as: Bullhead, UFO

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
8.0mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Silver
Jewels
20j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1967

Related Models

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