Seiko Cal. 6399 - 767

The Seiko 6399-767 represents an important milestone in Seiko's 1970 lineup. Powered by the 6399 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-738f325e8343]

Also known as: Samurai, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1970

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