Casio ldf-12] was searching for a vibration alarm watch, and most were too chunky for me (Gshock sized) but fortunately cane across this interesting piece...pretty unusual in many ways : r/casio
Casio Vibration Alarm Digital Sports Watch W736H-1AV - Newegg.com
Casio Digital Vibration Alarm Mens Sports Watch W-735H-5A
Casio Vibration Alarm Digital Sports Watch W736H-1AV
Casio W-736H Watch with Vibration Alarm - Full Review - YouTube