Seiko Cal. 7178 - 156

The Seiko 7178-156 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-aac20e5bd319]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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