Casio fx300sa manual

Up for sale is this super feature-packed GBDH2000
Comes as like new with its full kit.
I’m asking $250 shipped
PayPal FF preferred but also accept Venmo, CashApp, and Zelle

I had this exact model in ELEMENTARY school and it was my intro to watches back then. Recently picked up this mint condition model on eBay. Sadly, it’s been discontinued now…I remember the 5 alarm + timer Casio modules fondly. And, just to sweeten the deal, this has a wrist activated backlight too! Seems to be a somewhat rarer breed today than it once was.
Model: WL-500 (Module 2591). User guide can be found here if you want to read more about it!

Got myself this little watch when I registered in AliExpress. There was a welcome offer where a lot of products had crazy discounts, so I took the chance to buy one of the lesser-known (for now) models from Skmei. After a month of using this watch exclusively in a daily basis, here's what I gathered so far:
PROS:
-Extremely high quality compared to other models: I don't know if it's a matter of this model or the brand getting better as time goes on, but this watch greatly exceeds my 9112 and 1412 in the finish department. The looks, feel and weight of it is comparable to the Q&Q and Casio entry models, IMO.
-Great clasp and bracelet: This is my first Skmei watch with a metal bracelet, and I'm impressed with it. Clean finish without any rough or sharp spots, and the clasp is sturdy. I would say it's halfway there with the classic Casio ones.
-Hard to scratch: Got it's fair share of wallrides and cat claw attacks, plus a fall when I was sleepy. The finish and crystal seem to be OK so far.
-Backlight: I say it again. I can't believe a watch this cheap has such a good backlight when my Casio A-158 still has the tiny green thing on the side. For a fairier comparison, took a photo comparing it to the backlight of my Casio B-640. (Photo 8)
-Good dial contrast: Cheap digital watches tend to lack decent number contrast, especially when not looking at the dial front-face. This watch has a good readability.
-Unisex, and for all wrist sizes: I have a skinny wrist and the watch doesn't feel invasive or out of place at all. Got my girlfriend (smaller wrist) and grandpa (big guy) to try it on and it looks good on both.
CONS:
-Most definitely not waterproof: It supposedly has 3 ATM water resistance, but I higly doubt it. There's clearly some gaps in the button holes that will get watee inside the module. I haven't got mine wet and don't plan on doing so. I'll be happy to be proven wrong in the future.
-Odd finish contrast between the case and the bracelet: The case is extremely glossy and the bracelet has more of a brushed finish to it. Not a fan of it. I would've preferred a more toned-down case or a shinier bracelet. (More of a personal con, as I have the same complaint for my Casio B-640)
-Very hard to adjust clasp: Seems to be a recurrent issue with Skmei bracelets. The clasp is just extremely stiff and hard to close when you want to adjust the lenght of the bracelet. Almost took it to service just to close it, heh.
-Poor presentation: Couldn't find a metal case or cardboard branded box. It just comes inside a bubblewrap with the manual and that's it.

That's all for now! I will do an update when I hit the six month of use mark. I would definitely recommend it! It's a nice and not so well known model that won't dissapoint. Hoping to see it in this subreddit! As always, tone your expectations to match a single-digit-value watch ;)

$55 shipped CONUS. Like new condition, just doesn’t get enough wrist time. Comes with everything shown: watch, tin, manual, retail box, retail tag.

Got a PRW35. What are these digital markings on the edge of the watch face? I don't see them on my watch in any of the modes, and the manual doesn't say anything about it. Does it count the seconds or something? The photo is from the Casio website and it's just on the main timekeeping mode.

Okay, I'm extremely nostalgic about the days I first assembled a 386 op amp kit and how it sounded running a drum through it. Specifically, the drums on some cheap Casio or whatever it was. I have been trying to recreate that sound as well as I can remember it and maybe it's just how I'm feeling but the cheap preassembled boards I have been trying are, although well worth trying for some uses, I think maybe don't give me the sound I remember. Maybe more harmonic content? Not sure.
So here is what I've been trying this week, with two LM386 kits wired in sequence. They don't sound too bad, although I'm going to have to replace those mini pots with something I can mount on the enclosure.
https://www.youtube.com/watch?v=CSyKwquDONg
Okay and in other news, here is the kit I bought at Electronics Plus in the 90s. It was a Philips kit. It doesn't appear Philips makes their kits anymore. It's so funny, I can remember the manuals they included. Glossy. And since the little 386 boards I bought on ali express or whatever didn't seem to quite do it for me, it just occurred to me last night I could use this thing as a template and breadboard it and see if it's any different. So that is going to be a little project now. I bought this kit in the 90s, all the dirt and corrosion has been from being floating around in my toolbox for 30 years.
https://preview.redd.it/qze083ijx1yc1.jpg?width=1350&format=pjpg&auto=webp&s=f5c64c57ee094408498ae64b714ce2ce9c17fd89
https://preview.redd.it/2u5ta90mx1yc1.jpg?width=1350&format=pjpg&auto=webp&s=31144638225fe7146dd2f203dc6d85c8b67b84d7