Seiko Cal. 7178 - 157

The Seiko 7178-157 represents an important milestone in Seiko's 1970 lineup. Powered by the 7178 caliber with 26j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-dff4e61491a3]

Also known as: Tuna, Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

38mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1970

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