Seiko Cal. 7157 - 340

The Seiko 7157-340 represents an important milestone in Seiko's 1974 lineup. With its 21mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-d5a9b12e36bd]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1974

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