Watermota Sea Panther - drive belt code/part number?

[ncritchley]

Does anyone know the code/part number for the drive belt for a Sea Panther (connecting alternator, water pump and crankshaft)? I need to buy one and don't have the original. Thanks!

 

[ncritchley]

All fine, I found one to measure - 90cm approx. Daft question really.....