Seiko Cal. 6391 - 991

Seiko 6391-991

This Spring Drive model from 1990 features a 35mm Titanium case. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-831a72819b74]

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
35mm
Case Thickness
12.5mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Champagne
Jewels
18j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1990

Related Models

seikata-wm-831a72819b74