Seiko Cal. 6633 - 228

The Seiko 6633-228 represents an important milestone in Seiko's 1979 lineup. Powered by the 6633 caliber with 21j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-8849ee961fc4]

Also known as: Shogun, Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1979

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