Seiko Cal. 6378 - 788

Seiko 6378-788

The 6378-788 is a sought-after Quartz piece from Seiko's golden era. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a01b63ab4e9f]

Also known as: Bullhead, Sea Horse

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
44mm
Case Thickness
13.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
190m
Dial Color
Champagne
Jewels
32j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1972

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