{"product_id":"casio-collection-f-b100w-1ajf-jdm-bluetooth-step-tracker-black-digital-mens-watch","title":"CASIO COLLECTION F-B100W-1AJF JDM Bluetooth Step Tracker Black Digital Men's Watch","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe CASIO COLLECTION F-B100W-1AJF is a JDM black digital watch that combines a lightweight retro-style case with modern Bluetooth Mobile Link. Through the CASIO WATCHES app, it supports automatic time adjustment, easy watch settings, phone finder and life-log data, while the built-in step tracker adds daily activity monitoring. With 50 m water resistance, LED backlight, stopwatch, timer, 5 alarms and full auto-calendar, it is simple, practical and easy to wear.\u003c\/p\u003e\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: CASIO COLLECTION\u003c\/li\u003e\n\u003cli\u003eModel: F-B100W-1AJF\u003c\/li\u003e\n\u003cli\u003eMarket: Japan Domestic Model \/ JDM\u003c\/li\u003e\n\u003cli\u003eDisplay: Digital\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eCase Size: 41.4 × 36.3 × 9.6 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 25 g\u003c\/li\u003e\n\u003cli\u003eCase \/ Bezel Material: Resin\u003c\/li\u003e\n\u003cli\u003eBand Material: Resin Band\u003c\/li\u003e\n\u003cli\u003eGlass: Resin Glass\u003c\/li\u003e\n\u003cli\u003eWater Resistance: 5 bar \/ 50 m\u003c\/li\u003e\n\u003cli\u003ePower Source: Battery-powered\u003c\/li\u003e\n\u003cli\u003eBattery Life: Approx. 2 years\u003c\/li\u003e\n\u003cli\u003eSmartphone Link: Bluetooth Mobile Link\u003c\/li\u003e\n\u003cli\u003eApp: CASIO WATCHES\u003c\/li\u003e\n\u003cli\u003eApp Functions: Automatic time adjustment, easy watch setting, phone finder, life-log data\u003c\/li\u003e\n\u003cli\u003eActivity Function: Step Tracker with 3-axis accelerometer\u003c\/li\u003e\n\u003cli\u003eStopwatch: 1\/100-second stopwatch, 24-hour counter, split time\u003c\/li\u003e\n\u003cli\u003eTimer: Countdown timer\u003c\/li\u003e\n\u003cli\u003eAlarms: 5 daily alarms \/ hourly time signal\u003c\/li\u003e\n\u003cli\u003eLight: LED backlight\u003c\/li\u003e\n\u003cli\u003eCalendar: Full auto-calendar\u003c\/li\u003e\n\u003cli\u003eOther Functions: 12\/24-hour format, button tone on\/off\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±30 seconds per month without mobile link\u003c\/li\u003e\n\u003cli\u003eWarranty: 1-year official manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Highlights\u003c\/h2\u003e\n\u003ch3 id=\"bluetooth-mobile-link\"\u003eBluetooth Mobile Link\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConnects with the CASIO WATCHES app for automatic time adjustment.\u003c\/li\u003e\n\u003cli\u003eEasy watch setting and phone finder add modern convenience.\u003c\/li\u003e\n\u003cli\u003ePractical upgrade from a basic digital watch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 id=\"step-tracker-function\"\u003eStep Tracker Function\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in step tracker supports everyday activity monitoring.\u003c\/li\u003e\n\u003cli\u003eLife-log data can be checked through the smartphone app.\u003c\/li\u003e\n\u003cli\u003eUseful for daily walking, commuting and casual fitness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 id=\"lightweight-digital-design\"\u003eLightweight Digital Design\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSlim 9.6 mm case and lightweight 25 g resin construction.\u003c\/li\u003e\n\u003cli\u003eBlack digital design is simple, casual and easy to match.\u003c\/li\u003e\n\u003cli\u003eComfortable for everyday use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 id=\"practical-casio-functions\"\u003ePractical CASIO Functions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5 bar \/ 50 m water resistance for daily wear.\u003c\/li\u003e\n\u003cli\u003eStopwatch, countdown timer, 5 alarms and full auto-calendar.\u003c\/li\u003e\n\u003cli\u003eLED backlight improves visibility in low-light situations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 id=\"strong-closing-line\"\u003eStrong Closing Line\u003c\/h3\u003e\n\u003cp\u003eBluetooth Mobile Link \/ Step Tracker \/ Lightweight Digital Design \/ 100% Authentic Genuine CASIO COLLECTION JDM Model\u003c\/p\u003e","brand":"CASIO","offers":[{"title":"Default Title","offer_id":48952391696639,"sku":"F-B100W-1AJF","price":10300.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/0561\/5871\/files\/neel_f-b100w-1ajf_1_d_20260729195723.jpg?v=1785987484","url":"https:\/\/japanheartfulstore.com\/products\/casio-collection-f-b100w-1ajf-jdm-bluetooth-step-tracker-black-digital-mens-watch","provider":"Japan Heartful Store","version":"1.0","type":"link"}