Seiko Cal. 6628 - 442

The Seiko 6628-442 represents an important milestone in Seiko's 1990 lineup. Powered by the 6628 caliber with 34j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-6ed834722dc5]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1990

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