Seiko Cal. 6391 - 615

Seiko 6391-615

This Automatic model from 1967 features a 36mm Titanium case. With its 18mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-95f93933befc]

Also known as: Navigator, Baby Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
36mm
Case Thickness
13.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
White
Jewels
27j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1967

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