MB6 and Bluetooth accuracy
I've been away from home without either watch since Monday morning.
The GBD200 needs BT connection for accuracy, which it hasn't had.
The M900D A uses multi-band 6 which it didn't receive in the last 24 hours, maybe more.
Both watches have lost/Gained time since they last received the signal needed for accuracy.
GBD200 is +6 seconds fast.
M900D A is -3 seconds slow.
So, are they effectively useless at keeping accurate time if left to their own devices?
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Dave
My name is Dave and I live in Oxfordshire, UK.
Oxfordshire
Member since
Last active: 1 hr ago
7.25” / 18.42 cm
Despite your concerns, they look great and you can never go wrong with a g-shock 👌
Despite your concerns, they look great and you can never go wrong with a g-shock 👌
More of an observation than a concern. A few seconds of inaccuracy doesn't bother me, I just found it interesting that they are no more accurate than a mechanical watch without a signal to correct them.
Thanks for the info. I have the GBD and struggled with whole bluetooth vs MB6 accuracy issue before going with bluetooth.
I'm going to preface this by saying no one really needs accuracy down to the second except for NASA or Japan Train Conductors.
There's a specific situation where I thought of where Bluetooth would be superior. If I was on a Cruise ship where I had access to wifi but no MB6 radio towers, then bluetooth wins hands down. It will automatically update as the time on your phone updates. Here's the coverage map of MB6 for North America.
Notice that Alaska and parts of the Eastern Caribbean are missing. That might not be a big problem if your watch sync'ed up on last time before leaving the coverage area. Again, I recognize that these are first world problems.
I have two that are MB6 and may not update every night either, but overall accuracy vs. my computer or timeanddate.com is always close so I just enjoy the watches and go on.