Seiko Cal. 6662 - 657

The Seiko 6662-657 represents an important milestone in Seiko's 1979 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-d6fb3738d677]

Also known as: Turtle, Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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