Seiko Cal. 6390 - 608

The Seiko 6390-608 represents an important milestone in Seiko's 1988 lineup. Powered by the 6390 caliber with 20j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-bd5bf4e6cd1a]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1988

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