The stations were
Gants Hill and
Cockfosters. The clock is the most awesome timepiece I've ever seen and I'd love a wall clock of a similar design. The filename is a piece of lyrics from the Subways' song Clock, and was put in there purely for dudey's benefit!
Correct answers for 6.09:
mps247
Lancaster Gate
editorsfoot
Going Underground
garion24wales
jbom1
Correct answers for 6.11:
nozzacook
mps247
Lancaster Gate
editorsfoot
garion24wales
jbom1
Starkey7
Wrong answers:
nozzacook ("I've seen the clock but can't tell you where")
tangy (Wanstead and Uxbridge)
Going Underground (Arnos Grove)
Starkey7 (Wanstead)
The clock at Wanstead can be seen
here.
Holder of the slowest recorded 274 attempt: 4 months, 1 day, 9 hours, 17 minutes, 32 seconds.