Seiko Cal. 6391 - 689

This Spring Drive model from 1973 features a 43mm Two-Tone case. Powered by the 6391 caliber with 21j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-15fdb35dd8fb]

Also known as: Pogue, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1973

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