Sept 29 (Reuters) - The Slovak central bank's foreign currency reserves edged up to $13.229 billion in the week to Sept 27, from $13.160 billion one week earlier, the bank said on Friday. SLOVAK FOREIGN RESERVES Sept 27 Sept 20 Sept 12 ($ million) Central Bank 13,228.7 13,159.8 13,247.8 Commercial banks 3,256.5 3,193.5 3,462.3 Total banking sector 16,485.2 16,353.3 16,710.1 NOTE: Reserves data are calculated according to methodology compatible with European Central Bank standards. (Reporting by Martin Santa in Bratislava) ((Editing by Alan Crosby; editorial@reuters.sk; Reuters Messaging: martin.santa.reuters.com@reuters.net; +421 2 5341 8402)) Keywords: MARKETS SLOVAKIA RESERVES