My solution is to use the tycho-packaging-plugin. Only "disadvantage" changing the build qualifier needs to rebuild all modules contained by the repository.
Here the part out of my parent pom.xml:
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-packaging-plugin</artifactId>
<version>${tycho.version}</version>
<dependencies>
<dependency>
<groupId>org.eclipse.tycho.extras</groupId>
<artifactId>tycho-buildtimestamp-jgit</artifactId>
<version>${tycho-extras.version}</version>
</dependency>
</dependencies>
<configuration>
<strictBinIncludes>false</strictBinIncludes>
<format>'rev${rev}-'yyyyMMdd-HHmm</format>
</configuration>
</plugin>