The first clock is on the premises of W A Ellis on Brompton Road (Harrods has no clock (?)), and nearly opposite is Beauchamp Place which has a clock at Hamilton and Inches.
Further down the road is the famous Brompton Oratory. This unfortunately does not have a clock, but hidden behind it is the Holy Trinity church.
Continuing past the V&A (although I would always recommend a visit) and what I think is the most beautiful building in London (the Natural History Musem), and a hike down Cromwell Road, you arrive at Gloucester Road station. Whilst the station is worth a visit for its programme of platform art, today's interest is in the shopping arcade above, which has this splendid clock:
Turning into Earl's Court Road brings you past St Phillips church.
Reaching Kensington High Street and battling through the crowds of shoppers (and with a quick diversion into Hotel Chocolat), gives you the rather dilapidated clock at Henry Hallpike jewellers, a rather plain one at the Kensington Arcade (by the tube station) and one on a lovely building opposite.
Turning up Kensington Church Street brings you past the clock at the entrance to Lancer Square and one over an empty premises:
And finally, reaching Notting Hill Gate and turning back towards the main West End, one is able to ignore the "No Photographs" signs and take this picture of the security hut on Kensington Palace Gardens:
Time now for lunch!