Seiko Cal. 6378 - 105

The 6378-105 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6378 caliber with 18j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-dba4e6a0318b]

Also known as: Shogun, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1983

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