Seiko Cal. 6657 - 976

The 6657-976 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-0f1daa31b15b]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1980

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