OLEVS Luminous large dial multi-function chronograph men's watch waterproof calendar luminous quartz men's casual watch watch_strap_color:silver black steel strap AAA Battery Battery Number 4

AAA Battery Battery Number 4 Battery included or not No Other Features Transmitter with 1

the LED on the board is not lit

Multiple adjustment joints makes helmet fit head perfectly

Unit Material CCL + components Application Electrophysiological Measurements of Pulse Heart ECG Monitoring Sensor Module Working Voltage 3

OLEVS Luminous large dial multi-function chronograph men's watch waterproof calendar luminous quartz men's casual watch watch_strap_color:silver black steel strap AAA Battery Battery Number 4Movement brand: original quartz movement Color: black skin black shell black face male, black skin black male, black steel black shell black male, steel belt black male Model: 2873DP Thickness: 12mm Special functions: decoration, luminous, chronograph, calendar Clasp style: pin buckle Dial diameter: 46mm Dial shape: round Waterproof: Yes Waterproof performance: 30M Buckle material: stainless steel Place of Origin (domestic): Guangdong Province Brand: