Seiko Cal. 7171 - 444

This Automatic model from 1977 features a 34mm PVD Black case. Powered by the 7171 caliber with 21j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-a386b210a7eb]

Also known as: World Timer, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1977

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