Seiko Cal. 6668 - 173

Released in 1971, the Cal. 6668 with design code 173 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-f5a7cc9be3d7]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1971

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