The Casio BP-100 is a true 90s tech marvel—a vintage watch that doubles as a blood pressure and pulse monitor. Loved by collectors and tech fans alike, this watch mixes health features with classic digital Casio looks. You’ll find the BP-100 often when thrifting vintage gems, usually priced between $50 to $150 depending on condition. It’s a rare find for anyone wanting a piece of wearable history that still feels futuristic today. Setting up the Casio BP-100 is simple: First, press the "Mode" button until you reach the BP/Pulse screen. Attach the finger sensor carefully. Press "Start," stay still, and wait for the reading. Always reset the sensor for accuracy by pressing "AC" if needed. Whether you're exploring vintage watches reviews or hunting for affordable collectibles, the BP-100 is a standout piece. For lovers of old money outfit watches and vintage tech, it’s a must-have conversation starter!