Seiko Cal. 7112 - 640

This Quartz model from 1987 features a 37mm PVD Black case. Powered by the 7112 caliber with 28j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-f6e5302f87ed]

Also known as: Silverwave, Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1987

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