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Casio 44mm Tough Solar Tide & Moon $45.95 + $10.43 Delivery ($0 with Prime over $49 Spend) @Amazon US via AU (in stock 10/08/21)


Casio Solar WS210H-1AVCF Camel

6% cashback at Cashrewards

  • Crystal/Lens - Resin
  • Diameter - 44mm
  • Case Thickness - 13.3mm
  • Solar Powered with Charge Indicator
  • Tide Graph and Moon Data
  • World time, 31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off
  • 5 Daily Alarms, Hourly time signal
  • Full auto-calendar (to year 2099)
  • Power Saving (Display goes blank to save power when the watch is left in the dark.)
  • Water resistant - 100 metres

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closed Comments

  • +1 vote

    How useful is tide graph and moon data?

    • +2 votes

      Could be if you like fishing, or surfing, or even prawning and other such activities…

      • +16 votes

        Could also use it to predict the missus' cycle.

      • +1 vote

        Can also be useful if you're a werewolf and having to remember when your next beastly transformation will take place.

    • +5 votes

      Being somewhat of a Casio/G-Shock collector, it really depends on whether the watch module calculates moon phase/tides based on latitude and longitude (and lunitidal interval) or home city information.

      When you're able to program in your exact latitude/longitude and lunitidal interval, the moon phase/tide graph readings are quite accurate (as a +/- a few minutes for high/low tide predictions and dead-accurate for moon phase), however if you have to rely on a pre-programmed home cities list (which won't always feature most Australian state capitals) then your moon phase/tide graph readings can be either late or early if you have to select Taipei/Hong Kong as your home city.

      It really depends on the watch model as to how it will perform those calculations, so your best bet is to look up that particular module's manual on Casio's website and find out.


        You need longitude and the lunitidal interval. I use it for general knowledge when we're staying near a beach - I'll set it up for that area. One place we stayed it was mud at low tide (huon river), and our dog would go ballistic running through it up to his arm pits๐Ÿ˜„. So we started walking there when the tide was near its highest, and he'd swim.


          Depends on the model, from my experience Casio watches that feature both tide graphs & moon phase indicators will need lat/long coordinates and lunitidal intervals manually programmed into them.

          Otherwise they'll rely on pre-programmed home city data to make those calculations, so once you a select a home city from the watch's time zone list it will automatically have the relevant lat/long coordinates and lunitidal interval set. This is not ideal for Australian customers though as generally most Casios will have Sydney as the only Australian city in the list of available home cities (some newer and more expensive ones do have other locales in Australia, but this model for instance would not given the price bracket it's in), which means your lat/long coordinates are useless for calculating tides and moon phases if you live anywhere other than Sydney.


            @Gnostikos: Can this one be manually progamm the long/lat coordianate?


            • +1 vote

              @hgaoxhgaox: From that operation guide you linked, it looks like it's preset Home City data to calculate tides and moon phase, as per this quote on page 2:

              In the Tide/Moon Data Mode, you can see the current tide and the current date's Moon phase for your Home City.

              And this quote on page 4:

              The Tide Graph calculates and graphically represents current tide conditions in your Home City or port city inf the vincinity of the Home City based on longitudes, lunar day length, and lunitidal interval interval preset in watch memory, and on high tide times specified by you.

              Though it does also allow you to manually specify what time high tide occurs but that appears to only be date-specific (as high tide times will obviously naturally vary depending on the time of year), so you would need to update that setting on a daily basis if the tide graph is inaccurate.

          • +1 vote
  • -3 votes

    so much watch for under a 50…but the aesthetics are just such a deal breaker!


    How long is a solar-powered battery, if regularly exposed to sunlight, likely to last?

    • +2 votes

      do you mean the lifespan of the battery? I have a Tough Solar bought around 10yrs ago. There are periods where I wear it often and a few years where I left it in the dark. It still functions fine and the battery charges to "H" as I leave it on the windowsill. I haven't tested how long the battery would last once its fully dark though.

  • +3 votes

    Anyone else dislike the unnecessary words that seem to feature on so many digital watches? Such as: "ILLUMINATOR", "TOUGH SOLAR", "WORLD TIME", "10 YEAR BATTERY".