Seiko Cal. 4412 - 150

This Spring Drive model from 1989 features a 40mm PVD Black case. Powered by the 4412 caliber with 20j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-e89bcc8ece7b]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1989

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