Seiko Cal. 6670 - 999

Released in 1969, the Cal. 6670 with design code 999 was part of Seiko's domestic market collection. With its 21mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-c92abd62ac8e]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1969

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