Seiko Cal. 6391 - 664

Seiko 6391-664

This Kinetic model from 1973 features a 36mm Titanium case. With its 18mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-1fae77916c31]

Also known as: Tuna, Helmet

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
36mm
Case Thickness
13.8mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
130m
Dial Color
Champagne
Jewels
32j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1973

Related Models

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