BUZZ-Burberry: worst day in 19 months on lower FY16 outlook
** Burberry falls as much as 5 pct, its worst day since Oct (HKSE: 3366.HK - news) . 2013, as co lowers 2016 outlook
** Unfavourable FX leading to uncertainly in overseas markets, co says
** Co derives majority of revenues from outside UK: BAML estimates 1 pct move in GBPUSD would add £5 mln or 1.3 pct to EBIT, downgrades 2016 forecasts by 7 pct
** Top faller on FTSE 100 (RM (LSE: RM.L - news) : alasdair.pal.thomsonreuters.com@reuters.net)