Seiko Cal. 6642 - 782

The 6642-782 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-84cdb4ed4104]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1979

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