For an accurate temperature reading, you must take the watch off your wrist for about 20-30 minutes; otherwise, your body heat will skew the sensor's data. AQF-100W-7B Casio Forester Men's Watch - Watchard.com
The Tide Graph is only as accurate as your "Home Site" data. You’ll need to look up the Lunitidal Interval for your specific longitude to get accurate tide readings. Aqf100W 7Bv Manual
If you’re trying to "prepare" the watch for use, keep these three manual tips in mind: For an accurate temperature reading, you must take