Seiko Cal. 6657 - 973

Released in 1981, the Cal. 6657 with design code 973 was part of Seiko's domestic market collection. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-59be68ca0c94]

Also known as: Helmet, Goldfeather

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1981

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