Seiko Cal. 7131 - 786

This Spring Drive model from 1980 features a 45mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-7688efd02244]

Also known as: Bullhead, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1980

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