Seiko Cal. 6668 - 975

The Seiko 6668-975 represents an important milestone in Seiko's 1989 lineup. It features a Silver dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-e8f7b5855a54]

Also known as: Sumo, Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1989

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