Seiko Cal. 6171 - 861

This Hand-Winding model from 1979 features a 46mm PVD Black case. Powered by the 6171 caliber with 23j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-c9e7f647aa96]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1979

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