SIGMA PC15 Men's Watch Silver Tone Black NEW BATTERY INSTALLED | eBay
Nakornthai Bike - Sigma PC 15.11 (Heart Rate Monitor) PC 15.11 Features - ECG-accurate - Current, average and maximum heart rate - Lap counter (50 laps) - Easy LapView - Automatic training
Sigma PC-15 heart rate monitor - BikeRadar
Sigma Heart Rate Monitor Watch PC 15 Has New Battery | eBay