Seiko Cal. 6378 - 447

Seiko 6378-447

This Spring Drive model from 1988 features a 36mm Hardlex-Coated Steel case. With its 22mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-526ac250c25a]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
10.9mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
90m
Dial Color
Black
Jewels
31j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1988

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seikata-wm-526ac250c25a