Seiko Cal. 7157 - 551

The Seiko 7157-551 represents an important milestone in Seiko's 1980 lineup. Powered by the 7157 caliber with 29j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-4509f8d79513]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1980

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