Most of my content has been found in forums or provided via email by numerous collectors. The list below should give you plenty of reading material about the 2209 (ultra-thin) movement.

Forum Discussions:

• Vympel Discussion with heaps of information
• More Vympel Information
• Many watch catalogs
• One of the best russian watch forum

Collections:

• Dashiell's Russian Watch Collection
• Mark Gordon's Russian Watch Collection
• 3133 Movement Collection and Guide

Other:

• Movement Logos used by various factories
• Russian Parcle Tracking 
• Russian Watch Guide
• Movement Case Codes
• 2209 Sekonda Restoration Tutorial Part I
• 2209 Sekonda Restoration Tutorial Part II
• 2209 Sekonda Restoration Tutorial Part III
• Not a watch but still very nice: Chevrolet Corvair Spyder