Seiko Cal. 7157 - 912

This Automatic model from 1971 features a 44mm PVD Black case. Powered by the 7157 caliber with 31j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-f6ca470135b7]

Also known as: Bellmatic, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

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