Seiko Cal. 6684 - 658

The Seiko 6684-658 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-c01cc35f88b0]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1980

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