Seiko Cal. 4471 - 506

This Spring Drive model from 1989 features a 34mm PVD Black case. Powered by the 4471 caliber with 28j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-0487a2b83fac]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1989

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