Seiko Cal. 6628 - 990

The Seiko 6628-990 represents an important milestone in Seiko's 1985 lineup. It features a Cream dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-2c80a640ae32]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1985

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