Seiko Cal. 6378 - 120

Seiko 6378-120

This Spring Drive model from 1980 features a 46mm Gold-Plated case. Powered by the 6378 caliber with 25j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-7097b55445c3]

Also known as: Sumo, Arnie

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
10.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Champagne
Jewels
25j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1980

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seikata-wm-7097b55445c3