Seiko Cal. 6278 - 161

The 6278-161 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6278 caliber with 23j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-e7315f30393c]

Also known as: Navigator, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1971

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