Seiko Cal. 6648 - 980

The Seiko 6648-980 represents an important milestone in Seiko's 1977 lineup. It features a Silver dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-e97d6ba9c654]

Also known as: Sumo, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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