Seiko Cal. 6391 - 345

The 6391-345 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6391 caliber with 19j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-8cdf79120b55]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1968

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