Seiko Cal. 6391 - 328

Seiko 6391-328

This Spring Drive model from 1984 features a 40mm Stainless Steel case. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-e9979d9f2473]

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Black
Jewels
19j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1984

Related Models

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