Seiko Cal. 6628 - 939

The 6628-939 is a sought-after Quartz piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-16e3d144e650]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1967

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