Please elaborate on the part about their not believing in the deity of Christ.
Like Clark posted above......they do not believe that Jesus is God and yes they hold to damnable heresies......
[h=1]Jehovah's Witnesses View of Christ[/h]
By Tal Davis
Jesus' Prehuman Existence
The Watchtower Society teaches that Jesus Christ was the first created being of Jehovah God. Jehovah God created Jesus as a divine-like spirit at some point in ancient, pre-creation time.
He is also identified by Jehovah's Witnesses with Michael the archangel. "Reasonably, then, the archangel Michael is Jesus Christ. So the evidence indicates that the Son of God (Jesus) was known as Michael before he came to earth" (
Reasoning from the Scriptures [Reasoning] [Brooklyn: Watchtower Bible and Tract Society of New York, 1985], p
Jesus' Divinity
The Watchtower Society denies the deity and eternal preexistence of Jesus Christ.
The Watchtower Society asserts that since the Greek language has no indefinite articles (a or an), the article can be used where needed in translating; thus they insert "a" before god to emphasize the Word's (Christ's) inferiority to God.
Jesus' Birth
The Watchtower Society teaches that Michael the archangel disappeared from heaven and was conceived miraculously by (the Virgin) Mary.
Jesus' Resurrection
Jehovah's Witnesses deny the physical resurrection of Jesus from the dead.
Those above should suffice...google their doctrine and you can see for sure......