Seiko Cal. 6671 - 977

This Automatic model from 1989 features a 39mm Two-Tone case. Powered by the 6671 caliber with 17j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-5483ed45e6a2]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1989

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