Seiko Cal. 6628 - 300

The Seiko 6628-300 represents an important milestone in Seiko's 1979 lineup. Powered by the 6628 caliber with 33j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-3b8fe53cce7e]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1979

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