Seiko Cal. 6391 - 464

The Seiko 6391-464 represents an important milestone in Seiko's 1990 lineup. Powered by the 6391 caliber with 26j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-2ec63628f1db]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1990

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