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While many people would like to believe that G-Shocks have specially designed modules, they are wrong. When the G-Shcok was in its infancy, modules were shared between standard Casios and G-Shocks. The very first G-Shock used a module similar to the one seen on the heavy duty series watches. While there might be minute differences, the basic functionality was the same. The watch in question is no different.


The MRT-200 is part of the "Marine Gear" watches which first came out in mid to late 1990s and it is one of the first models in that line of watches. The module in this watch is more or less the same as the DW6500 G-Shock with some minor changes which will be explained later. Some would say that this is a toned down version of the DW6500 but it is not entirely true.


Gone is the 200 metre water resistance and the shock resistance with no rubber bezel which has the tendency to crumble apart. In comes a new hard plastic case, with bigger and easier to press buttons and a proper sensor cover which is held in place by 4 screws. A welcome addition is the electroluminescent backlight which provides excellent night time visibility.

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The case benifits from a more slimmer overall profile, and the sensor look more like a part of the watch unlike an external piece. The watch can withstand bumps associated with daily use easily due to its G-Shock like design. I seriously think the DW6500 should've been made like this.

While the rest of the world was deprived of the depth meter in case of the DW6500, the MRT-200 came with a depth meter despite the region. Though it had a different name in the JDM and world markets. While the world had to call it "Marine Gear", its home market called it "Forester". The reason for which I don't know. The MRT-200 was also part of Casio's brief stint in Korea unlike the DW6500.

Switching from mode to mode, one sees that they are the same as on the DW6500, with the only difference being that the alarm is only a single one. Callibrate the sensor according to your weather station reports and the barometer works spot on. I haven't used the altimeter or the depth meter since I haven't had the chance to hike or go dive in the ocean.

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The trend graph shows the barometric trend of the past 18 hours with the latest one shown by a blinking dash. Since this watch doesn't have the luxury of a dot matrix display, the seven segment display is used instead.


So what do you think? Is this a toned down G-Shock or a better alternative to the DW6500?
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