Built in the Qajar dynasty by Abd-o-Samad Khan, father of Agha Khan and great grandfather of Azim-o-Saltaneh Sardar, Sardar Mosque is situated some 500m away from the Friday Mosque
The Sardar or Sa'atloo Mosque has been constructed during the Qajar period.
In 1951, the latter installed a big clock on top of the entrance door, which is why it is also called the Sa'atloo (clock) Mosque.
Less religiously significant than Jameh Mosque but architecturally fanciful Sardar Mosque has a Qajar-style tri-lobed cornice, a beautifully brick-vaulted interior and clock-tower minaret surmounted by what looks like a giant perfume bottle-stopper.
It has interesting architectural design which was constructed of brick during the Qajar period. The mosque is in two sections, the basement and a long hall.
Interesting architectural affects can be noted in this structure.
Source:
http://wikitravel.org/en/Urmia
http://www.lonelyplanet.com/Iran/western-Iran/orumiyeh-urmieh/sights/religious/sardar-mosque
http://coiradio.ir/index.php?option=com_content&view=frontpage&Itemid=438