Seiko Cal. 7178 - 936

The Seiko 7178-936 represents an important milestone in Seiko's 1971 lineup. Powered by the 7178 caliber with 30j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-508176738044]

Also known as: Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1971

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