Today I received a CASIO JP-100W. Not the original strap, but a matching one was ordered to restore this cool watch to its former glory. My pulse is at 100❤️ : r/casio
Casio Jp100-w con pulsómetro original Japón de segunda mano por 100 EUR en Bilbao en WALLAPOP
Casio JP-100W (509) Pulse Check Digital Watch Vintage RARE Japan Jogging Sports | eBay
I rescued a Casio JP-100 'Pulsecheck' | WatchUSeek Watch Forums