(カシオ) Casio G-Shock ソーラー 原子時計 耐衝撃　腕時計 GW7900–1AL

Like I said, this is my first G-Shock. I chose this model for four, very specific reasons: 1) It is solar (I've loved solar watches since the 1980's) 2) It can sync itself to atomic time via radio communications. 3) It has a moon phase "complication" (this is a "thing" for me.) All watches I love have this complication. 4) It lets me track a second time zone easily and time in that zone on the face with the time in my home time zone. That all added up to the perfect storm for me. This is effectively a tool watch that gives me the ability to set the mechanical watches in my collection based on a known time source without needing to fire up a computer. And I admit, I finally caved to the idea that all good watch collections should contain at least one G-shock. Could I have bought one of the multi-K "G Master" series that rival the price of some mid-tier luxury watches? Sure. Except that the leave my soul feeling dead. They're just a quartz movement in a package of "bling". No, there is nothing "wrong" with quartz, unless you're asking me to pay more than a few hundred USD for it, once you cross that threshold, I'd rather have a good old fashioned mechanical movement inside all that bling. However, that's a different story and doesn't involve this watch. This watch is exceptional for that it does: 1) It syncs consistently with the atomic signal (read on for details) 2 I will likely never have to worry about batteries 3) I won't worry about it when I go fishing, it just won't need to be babied. I have read much foo about all the trouble people have getting Multiband 6 watches to sync. I'll say it again it's all foo. If you live within the theoretical range of one of the towers, forget the Apps, and all the other tricks. You can get your watch to sync consistently, every night with a "fix' that is effectively free. Credit for this goes to a guy on YouTube who goes by the name of "Watch Geek". He, as do I live near the edge of the effective range of one of the towers. He's in central Europe and I'm on the west coast of California (about 1,500 miles from the tower in Fort Collins Colorado.) My watch syncs nightly using Watch Geek's "trick", which is simply to fasten the watch around a metal object before you go to bed at night. He uses the cross bar on his bike or an exercise bar, I use a metal desk lamp. If I fasten the watch around the cross bar of the desk lamp, it syncs every night. If I just leave it laying on the desk in front of the lamp, I'm pretty much guaranteed to have an error message in the morning. Watch Geek's YouTube video covering this is called "DIY Amplifier for Atomic Radio Controlled watches that actually works & is VERY simple". Just search for his channel and find that video. I also read a bunch of foo about the "screws" on the face of this thing. If that bugs you, take the bezel off and add a drop of super glue to each one. I don't see those rivets coming out except under conditions that I'm not likely to survive, at which point I won't care. I read alot of foo about people getting the watch and having trouble getting charged. I suspect that these people are vampires and never went out in the sun. I got my watch with the charge indicator on H. As soon as it was out of the box, I was playing with it and admiring the light, and all the normal things an enthusiast does with a new watch. Within 24 hr, my H had degraded to an M. A couple hours in a sunny window fixed that without any thought on my part. It has not left H since then. I also heard alot of foo about how "huge" this watch is. Yes, it's a couple of millimeters taller than many diver's watches, but frankly if you can sense a millimeter or two, then you're too sensitive to be wearing a watch like this. The reality is that it wears smaller than many of the smaller divers I have. I attribute that to the "wings" under the strap and the way it fits the wrist. It's not big on the wrist (at least to me with a nearly 7" wrist) and it's certainly not heavy. There are a couple of cons. First, I find some of the smaller indicators hard to read when I first wake up and don't have my glasses on. I can still see the time, but the smaller details are hard under those conditions. Second, the light could be brighter. I'm glad this is backlit as if it was an LED shinning across the surface of the display, it would be unreadable. Third, I usually find myself pressing the light button several times as 3 seconds is not enough time for me to read the thing. All in all, I think my cons are nits. I'm happy I got it, and I likely will get a couple of the runner's up in the race to be my first G-shock as I'm pleasantly surprised by the functionality and style available in these watches, at least at the modest end of the range. I really do understand why there are G-Shock enthusiasts out there.

Es un buen G Shock. El tamaño no es tan grande como otros G Shock, y me decidí a comprarlo por ser un reloj atómico y de carga solar. Este es mi cuarto Casio solar.

I’ve been considering getting a watch to complete a three watch Tough Solar G-Shock collection, and I figured this one would be a great one to add. After getting this in hand, I have to say, it came in perfect condition, despite being an Amazon Warehouse product (open box deal). The watch fits nicely on my wrist, especially with the added ‘wings’ underneath the watch, making the fit more secure. Despite being a ‘big’ watch, it’s not dauntingly huge, if anything, it’s on par with the 6900 when it comes to its size. In my eyes, it doesn’t look as great as the 6900 or square, but it’s good enough to me, as it reminds me of some watches I’ve seen when I was growing up. It has a nice, rugged look to it, just like any other G-Shock out there, so expect the same amount of durability as well. The features, such as Multi-Band 6 + Tough Solar are always a great feature to have, hence the reason why I went for this watch as well. It arrived on ‘M’ level, so it’ll take some time to get the battery indicator to read ‘H’. Since receiving the watch, I’ve had no problem receiving a signal at night when I leave the watch on my table, ensuring that the watch is always synced and accurate every morning. However, if I’m being honest, I don’t find much use for the moon phase/tide graph information. But overall, the functions are great, with 4 alarms, a snooze alarm, an hourly alarm, as well as a world time function, stopwatch, and countdown timer. Plus, this watch has an electroluminescent backlight, as opposed to the new white LED backlights that have been introduced in the newer G-Shock models. Only time will tell how well this watch will do in the long run, but I have high hopes this watch will serve me well, just like my 5610U and 6900. This is a great watch to get if you’re looking for a G-Shock with great features, and something that’s a bit on the bigger side.

Es gibt noch eine bessere, aber mir zu teure G-Shock die 3.300 Orte am Meer unterstützt und auch den Sonnenaufgang und Untergang anzeigt, und zwar die G-Lide GBX-100NS-1ER. Wem es als Deutscher reicht, in unserer Zeitzone Stockholm oder Berlin als Heimatort für die Gezeitenberechnung einzustellen, der hat mit dieser Uhr die richtige Wahl getroffen, denn man kann statt 3.300 Orte am Meer nur einen von rund 40 voreingestellten Heimatorten für die Gezeitenberechnung nehmen und nicht alle liegen wirklich am Wasser. Der Ort Berlin deckt daher eigentlich eher Greifswald ab, weil es in der Nähe ist und am selben Längengrad am Meer liegt oder Rostock, wenn man wegen der Lageverschiebung ein Auge zudrückt. Wenn man dann aber die Gezeiten misst, passen sie für Greifswald und Rostock mindestens für 14 Tage, nachdem man die tagesaktuelle Tidenzeit für Rostock oder Greifswald aus dem Internet abgelesen und in die Uhr eingetragen hat. Nach 2-3 Wochen wird es zu ungenau und dann korrigiert man es halt wieder. Die Casio Uhr ist nicht schuld an der Ungenauigkeit. Sie kennt nur eben nicht Wetterbedingungen, Meeresströmungen, Meeresboden- und Küstenbeschaffenheit, was sich auf den Tidenverlauf auswirkt. Sie kennt nur die astronomischen Bedingungen wie die Mondphase, den Längengrad und das durchschnittliche Tidenintervall. Irgendwann verschiebt sich die Tidenzeitzeit daher so sehr dass man nachkorrigieren muss. Bei dieser Uhr kann man auch tageweise zurück gehen für Mond - und Gezeitendaten und sie rechnet ab dem Korrekturzeitpunkt mit den korrigierten Daten in die Zukunft voraus so gut sie eben kann. Es gibt noch zwei andere Casio Gezeitenuhren die ich getestet und zurück gegeben habe, die WS1300 und die W-S210. Bei beiden kann man nicht in die Vergangenheit zurück rechnen. Bei der WS1300 ist man flexibler bei der Ortseinstellung, weil diese nicht auf Hauptorte beschränkt ist sondern frei nach Längengrad und Tidenintervall einstellbar. Dafür hat die Uhr keine Korrekturoption. Die W-S210 kann Korrektur, ist aber wiederum auf Heimatorte beschränkt. Die die G-Lide GBX-100NS-1ER war mir wie oben schon erwähnt zu teuer. Also ist es diese Uhr hier geworden, die ansonsten noch den vollen G-Shock Komfort hat, Though Solar, d.h. nie Batterie wechseln, Elektrolumineszenz Beleuchtung und automatische Zeitzonenumschaltung dank eingebauter Funkuhr. Ich empfehle die Version mit positivem Display, nicht die andere mit negativem Display auch wenn die billiger ist, wegen der besseren Lesbarkeit. Mein voreingestellter Heimatort ist Stockholm, weil es dieselbe Zeitzone mit Sommerzeitwechsel ist wie Berlin und weil Stockholm wirklich am Meer liegt (auch wenn die Gezeiten in der Ostsee nicht dolle sind - es gibt sie und sie stimmen wenn die Uhr richtig eingestellt ist).

Excellent product genuinely g shock. Recommend for who looking for good quality product