Seiko Cal. 6661 - 999

The Seiko 6661-999 represents an important milestone in Seiko's 1991 lineup. With its 18mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-611fd608969d]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1991

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