Seiko Cal. 6391 - 400

The Seiko 6391-400 represents an important milestone in Seiko's 1990 lineup. Powered by the 6391 caliber with 24j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-b95fd22d4194]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1990

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