Seiko Cal. 6656 - 820

The 6656-820 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-6808a1bc6db2]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1977

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