Seiko Cal. 5671 - 739

The Seiko 5671-739 represents an important milestone in Seiko's 1980 lineup. Powered by the 5671 caliber with 32j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-d14d517b02dc]

Also known as: Helmet, Rally

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1980

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