Seiko Cal. 6661 - 204

The 6661-204 is a sought-after Quartz piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-02526ae50bc4]

Also known as: Helmet, Silverwave

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1970

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