u/AlbertaTime1

So far as I know, this was one of the very first two (very similar) watches produced (at the same time) by Denissov. (The other was the Aeronaut.). It was also Russia's first slide rule watch, to my knowledge.

A Watchuseek member "Steele" wrote this in 2011:

"It is my understanding that this model (under both Aeronaut and Ocean brands) was the first product by Denissov before they settled down on the Denissov brand. Built in the murky period soon after Poljot caved in, nobody was quite sure who owned the various Poljot brand names, so that should explain why the Ocean name was used. Of course, Volmax now makes Ocean watches within the Sturmanskie collection."

10 o'clock crown for slide rule adjustment and 3 o'clock for time/date  functions

Note: There are very mixed QC reviews on this player depending on seller, etc [edit: i mean collection of reviews, from differing listings] so YMMV. This is my experience, but I give opinions, not advice. Always: buy the seller, not the device.

It takes a bit for the unit to boot up, but once it's up and running it's pretty pleasant. I can't say for streaming because I don't stream. I play FLAC and 320kbps MP3 files. (Video on this is MP4 or FLV, at least I tested for those. Thumbs up.)

I'm using Hiby player on it since this is Android, and since the onboard DAC is generic or unstated I wanted as much control over the sound as possible. I don't mind the Hiby software and it's my usual runner on my phones and my Hiby and Hidizs players, anyway.

Here's my comment on the sound: it's more than musical enough for enjoyable casual, if not critical, listening given Hiby's MSEB and EQ, and its not terrible just on its own. Not great, I'd rather listed to my R3Pro Saber either bluetooth or wired, but it's not like I miss the better player away from an A/B comparison. I can get sound I like from this.

For a budget player (or maybe a daily runner), at this price and for over a year running, now, that's good enough.

Here's some of what I wrote elsewhere when I got it:

"Pros:

1. because this is Android 14, I was able to download my usual video app (VLC) and Hiby player and they worked as expected/hoped.
2. tested with FiiO FF3s, JVC HA-F160s, Sennheiser 598s and Sony WH-1000XM4s (wired) and EarFun Air Pro 2s, SoundPEATS T2s, and Huawei Freebuds 3 (bluetooth), again, all working well and as expected.
3. Wi-fi connection was easy and stable, same with bluetooth at least in the same room or next..
4. picture quality with the IPS screen is pretty good. Watchable, for sure. It's small--but I can enjoyably watch a movie with the screen 5 or 6 inches from my face, and IPS screens don't have burn-in issues. That's all good.
5. the unit came with a USB cord and set of headphones (and extra eartips), and the pre-installed tips fit me well. [The earphones are nothing to write home about, though.]
6. yes, it has parental controls if you wish, and it's easy to remove and install apps.
7. you can choose light mode or dark mode."

That's all still true.

Battery life is stated as 1800mAh although I haven't drained it ever. I know I've listened for more than 8 hours once, though using headphones. But never more than that, so I can't say beyond that. But I thought that was pretty good and the battery wasn't anywhere close to gone.

Cons: *Slow* startup and can take a while to update a large database, and my computer doesn't recognize it as a drive, so to load new files I have to take the microSD out and transfer to that, Small bummer. Oh, and web browsing and movie watching eats battery life, but audio runs a long time. And no camera (not promised and not there), But that's about it.

The ZB-SK was also not marketed. Distribution was very limited across each model and color for both ZB-SK and SZB-1C.

The movement is ZSH, which was produced by Shanghai #1 Watch Factory. (fixed)

Quangang 全钢 /Fangzhen 防震 = all steel case/shockproof. The central caseback character is 钟山 ZhongShan.

It wouldn't be wrong to understand Zhongshan watches as the Timex of the early domestic Chinese watch industry. Both were inexpensive, dependable, and both had some very cool dials.

If the SN2 interests you, there's a great deal of info available at https://chinesewatchwiki.net/SN2

NOTE: the wiki isn't maintained at present so the top menu and some links are wonky, but all the main information is available on the single page.

Dongfeng pre-dated Sea-Gull as a Tianjin Watch Factory brand for export in 1973, but continued as a domestic brand until about 1987, so I understand. I'm pretty sure this is mid 1970s BICBW.

A Taobao purchase from 2009. Fluco Record (short) strap for a perfect fit on my 6.5" wrist.

I found this for $2.50 CDN at a thrift store in scenic Peace River back in 2014.

Hardly believed it when I saw it because it was the first mechanical watch I'd ever seen there, and then...well, because I recognized it instantly.

And grabbed it exactly that fast.

I have no idea how an mid-1980s Italian export Paketa/Raketa (exported to italy, I mean) made it to Peace River (population 7200 people), but here it sits to this day.