Seiko Cal. 7157 - 667

The 7157-667 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7157 caliber with 23j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-afb266491d04]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1991

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