This vintage 38mm. stainless steel vintage chronograph is quite rare. If you do your research, this watch was created by Breitling and is NOT a Frankenwatch. This is a transitional watch having an 810 dial with 824 case back. These hands are normally found on a Datora, but again is correct. The entire watch displays stellar condition overall with the caliber 178 manual wind was recently cleaned and is perfectly functioning. This is really a prime and amazing example of a transitional BREITLING that is seldom seen. This watch dates to 1969.