Casio G-Shock Classic Bluetooth G'Mix GBA400-7C Citizen Eco-Drive CB5840-59E Promaster Navihawk Monitor your heart rate¹ at

Monitor your heart rate¹ at the wrist as well as your heart rate variability to calculate your stress score

Domed sapphire crystal with anti-reflection coating on both sides

Citizen is proud to present the latest Promaster Blue Angels Air Skyhawk men's watch in a Special Edition box set

Accuracy: ±15 seconds per month (with no mobile link

Measuring Unit: 1/100 second (for the first 60 minutes)

Casio G-Shock Classic Bluetooth G'Mix GBA400-7C Citizen Eco-Drive CB5840-59E Promaster Navihawk Monitor your heart rate¹ atCasio G Shock Classic Bluetooth G'Mix GBA400 7C Bluetooth Smart enables linking between the watch and a phone for remote control of the phone's music player, simpler configuration of watch settings, and much more. Using the new G'MIX music app provides a new level of personalization to music playback. The G'MIX App in combination with the G'MIX GBA 400 watch makes music playback more enjoyable than ever. Technical Specs Shock Resistant 200M Water