Rupps Drums Shop Main Shop > Hardware > Tama Hardware > Tama Accessories TamaTension Watch TW100 Click for larger imageSKU Number: TW100 MSRP: $107.68 You Save:$37.69 FREE Tech Support FREE 1-year Warranty Rupps Price: $69.99 Quantity: The Tama TW100 Tension Watch measures actual head--not tuning rod tension--on an easy-to-read meter, so you can record the numbers and duplicate your best tuning time after time. Or you can use the sample tunings suggested in the directions. Either way, the Tama Tension Watch lets you spend more time playing and less time tuning your drums.