Seiko Cal. 6660 - 933

The Seiko 6660-933 represents an important milestone in Seiko's 1981 lineup. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-daff9db471da]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1981

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