Seiko Cal. 6390 - 631

Seiko 6390-631

This Automatic model from 1967 features a 44mm PVD Black case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-ec671c4d03a9]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
44mm
Case Thickness
12.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
200m
Dial Color
Green
Jewels
35j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1967

Related Models

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