Seiko Cal. 6646 - 406

The Seiko 6646-406 represents an important milestone in Seiko's 1980 lineup. Powered by the 6646 caliber with 33j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-f64194bb9e9d]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1980

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