Seiko Cal. 6391 - 931

Released in 1995, the Cal. 6391 with design code 931 was part of Seiko's domestic market collection. Powered by the 6391 caliber with 26j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-be64367eac09]

Also known as: Shogun

Specifications

Movement

Solar

Case Material

Titanium

Case Width

34mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1995

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