Seiko Cal. 7178 - 955

This Spring Drive model from 1984 features a 40mm PVD Black case. Powered by the 7178 caliber with 23j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-f61bbf47cde9]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1984

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