Seiko Cal. 6391 - 905

The Seiko 6391-905 represents an important milestone in Seiko's 1999 lineup. Powered by the 6391 caliber with 33j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-54dba67cbbe1]

Also known as: Samurai, Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1999

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