Seiko Cal. 6378 - 704

Seiko 6378-704

The 6378-704 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-4e4c7329c188]

Also known as: Sumo, Flighty

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
13.1mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
60m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1965

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