Seiko Cal. 6646 - 908

The Seiko 6646-908 represents an important milestone in Seiko's 1988 lineup. Powered by the 6646 caliber with 20j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-fbc8acd3751f]

Also known as: Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1988

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