Refurbished ex-SWT trains appearing on Southeastern lines

A fleet of trains that were originally ordered for South West Trains (SWT) but are no longer required are to start appearing on Southeastern lines following a recent refurbishment.
The Class 707 Desiro City trains are made by Siemens and in 2014, SWT ordered 30 5-car units. However, when SWT lost its franchise in 2017, its successor FirstGroup/MTR, which operates as South Western Railway decided to switch its trains to Class 701 Aventras.
The fleet of Class 707 trains, actually owned by the trai