Post pics of your watches Part II
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Farmer tan (dirt) here, no freckles. Giving my Toyota LC an oil change and of course I had to wear a Japanese watch for the job. First attempt at uploading a pic with the new boards.
If the seat's wet, sit on yer hat, a cool head is better than a wet ar5e.
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More 70s funk, a grand quartz 9943-8000. It's a twin quartz. It has two quartz crystals, thermal compensation is achieved by correcting the time base of one with data from the other. I'm trying to figure out exactly how this is done, and why the designer chose to use two oscillators in a watch, rather than one and a temperature sensor. I'm going to guess that seiko had deep knowledge of the thermal characteristics of quartz and applied that. My first stab is the crystals have differing temperature coefficients, the controller counts both, and from the difference can calculate the thermal correction to be applied.
The end result is +/- 10 seconds a year in 1979. It's no wonder they were barred from chronometer trials, soul-less abominations.
Anyway, these were in the 150,000 yen bracket when new. This one seems ok, bit of staining on the dial, bracelet to be replaced with a fine leather strap, dark brown, I think but I'm open to suggestions. Plating seems good on it too. The second hand is so fine, it's finer than human hair.
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It's a twin quartz. It has two quartz crystals, thermal compensation is achieved by correcting the time base of one with data from the other. I'm trying to figure out exactly how this is done, and why the designer chose to use two oscillators in a watch, rather than one and a temperature sensor. I'm going to guess that seiko had deep knowledge of the thermal characteristics of quartz and applied that. My first stab is the crystals have differing temperature coefficients, the controller counts both, and from the difference can calculate the thermal correction to be applied.
That's pretty much the reason NJ. A few years later in 84 Longines did the same thing with having two oscillators with their first very high precision VHP quartz.
My 1988 version(shielded against electromagnetism) which I happen to be wearing this very day. They also added temperature compensation to the mix and adjustment for drift and ageing of the quartz over time. Belt and braces like. 😁
It's no wonder they were barred from chronometer trials, soul-less abominations
Ironically that wasn't about quartz. The Swiss were heavily invested in that new tech in the 60's spending squillions on it. More than any one company could support so they formed a conglomerate to fund it. And then entering their quartz movements into the competition, which naturally gave them the top spots. No, the Swiss were pissed off at the Japanese because they went from also rans to serious competitors in under a decade. When the last trials were run all the top spots were Swiss quartz, the only others in the top ten were Seiko mechanicals. Seiko basically produced about the most accurate wristwatch movement in the history of the Swiss chronometer trials and the only thing that could beat them were high precision quartz.
Oh and unlike the heavily modded and fettled to within a micron of their lives usual trial movements fare, you could actually walk into a shop and buy the Seiko movement in a watch, with the officially licenced "Observatory Chronometer" text on the dial. Basically about the highest standard. The only other brand that could use that were of all brands Girard Perregaux around the same time. Other brands had put forward movements for Observatory Chronometer status, but they were all heavily modified one offs with massive balance wheels and very slow beat chronometer escapements.
So the Swiss took their ball back, changed the rules so no non Swiss upstarts could ever compete again and show them up and closed the trials. I heard they were restarting them, but only for the Swiss of course...
Rejoice in the awareness of feeling stupid, for that’s how you end up learning new things. If you’re not aware you’re stupid, you probably are.
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No freckles here either
This is my SKX013. Bought on the cheap on eBay a couple of years ago 'cos I really liked the small SKX. Then when it arrived it i turned out it needed a bit of TLC and also it was modded - and I never really wore it. Tried to move it on only to find out when I did a final wear test it was actually broken and wouldnt run properly. Ugh.
At that point it was either bin it or repair it. In the end I got a new movement fitted (NH36A) and a new AR sapphire and a new chapter ring put in. Also some general maintenance like o-rings etc.
Came out lovely and will be adding it to the rota.
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Newly arrived today. To tell the truth my interest had waned in the watch world once I found a big Seiko diver, but I always had an eye on a start up crowd called Phoibus. I missed their first issue, but last week an ad for the Leviathan popped into my inbox, and drunk-purchase later in she came. Model PY032a.
https://phoiboswatch.com/products/phoibos-leviathan-py032a-500m-automatic-diver-watch-green.html
I can't believe the quality for the price. The lume is unreal, even better than the Seiko. Gets fantastic reviews, let's see how long it lasts. Really not sure about this new site, but I'll give it a go.
Post edited by SmartinMartin on12 -
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