Those look like the orginal clamps...maybe you should take a close look at your cooling system before you make any decisions.
This is what I would do...but I've been know to do things that others will not
Wait until your engine is cool and pop the radiator cap off. Take a peek inside and say "hello" ... if it echos back then sell it ... just kidding!
Really...take a look at the coolant level and the condition of the coolant. I would recommend flushing your system and evaluating what needs to be changed. PREVENTITIVE maintainence...
Drain the radiator...remove the upper hose and take a peek inside. Is there rust? How about the lower hose...any swelling? Are the clamps digging into the hoses?
If your hoses are as old as those clamps are then you need to replace them before winter comes and you're left with no heat or even worse, left on the side of the road.
Prestone makes a cooling system cleaner that works great. Remove the thermostat, replace the housing, fill with water and Prestone's flush. DRIVE for about a week with the water/flush. Pay attention to any leaks. Leave your HEAT on to allow the flush to get into the heater core. If it's going to leak or fail it will let you know and better it fails with water in it.
After your week of driving drain all the water and muck from your cooling system. You may need to put the hose in the fill neck of the radiator to force out any debris in the radiator. Remove the upper and lower hose at the radiator, put the garden hose in the upper hose and flush debris from the engine.
NOW...what are you replacing? I say thermostat, uppper, lower and heater hoses with clamps.
That was a mouth full...your alternative is put a new clamp on your heater hose and ignore cooling system until it fails.
Hope this helped!