Seiko Cal. 6391 - 824

The Seiko 6391-824 represents an important milestone in Seiko's 1984 lineup. Powered by the 6391 caliber with 26j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-ff6878c63165]

Also known as: Monster, Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1984

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