Seiko Cal. 6628 - 508

This Spring Drive model from 1965 features a 44mm Hardlex-Coated Steel case. It features a Cream dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-c678475db499]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1965

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