Using administrative records data from Spanish Social Security, we analyse the pattern and the determinants of individual unemployment benefit spell durations. We compare a period of expansion (2005-2007) and the recent recession (2009-2011), allowing us to determine the impact of the current crisis. In line with the duality that characterizes the Spanish labour market, we distinguish between exits to a stable job and exits to an unstable job. We estimate a Multivariate Mixed Proportional Hazard Model for each time period. We find similar effects of the crisis for stable and unstable jobs, which are particularly strong in the first year of the spell. Moreover, slight negative duration dependence is found, especially for stable jobs in the expansion period until the time of unemployment benefit expires. Individuals who are most affected by the financial crisis tend to be males, those aged 16-24 and 40-51 years, those living in regions with higher unemployment rates, individuals who are less qualified or work in manual occupations (particularly construction) and immigrants.