Watchers

In order

1. 1.
   

   Watchers

   December 2, 1988

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2. 2.
   

   Watchers II

   August 16, 1990

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3. 3.
   

   Watchers III

   November 16, 1994

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4. 4.
   

   Watchers Reborn

   June 30, 1998

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