Tuesday, October 09, 2007

Shill Hits the Fan

I'm very pleased the somewhat bizarre symbiotic relationship between auction houses and watch houses I reported two years ago has finally hit the mainstream media. But guess what, newsflash, it's not just Patek Philippe.

Speedmaster put me onto this article by the WallStreet Journal which has set alight a fire around many places. Enjoy.

A pox on your houses.

Sunday, October 07, 2007

Jaeger-LeCoultre Polaris Re-Issue for 2008

Finally after months of speculation after years of lobbying and with the promise remaining unfulfilled by the intriguing new Diver range, JLC have finally announced that Polaris will be reissued for SIHH 2008. Here's hoping it wiil look something like the original.

I hope they've been listening and will produce a true homage piece for this cult watch.

Thursday, October 04, 2007

Silk Purse - The Balonium Mag Bang Ver 2.0

Hublot have announced a new watch called the Mag Bang which continues their dull theme of apeing the Royal Oak albeit without nicely aligned bezel screws. It's a big fuss because apparently alloying magnesium and aluminium together is some kind of breakthrough which Hublot have achieved. I'm not going to repeat the tedious hyperbolic press release here.

Anyway rather than the fact that it's a poor R.O. copy, interestingly, Hublot have chosen to describe the movement (upper left) as 'in-house', thereby creating an uproar as it has opened up the can of worms that is the definition of 'in house'. Good luck to them. Eyes, over, wool, pull? Stupid think they we are?

We have been here before (at least twice). Take a look and you may be guilty of thinking the movement reminds you of the mundane but effective ETA 7750 (lower left drawing from ETA).

My view is simple. The predominating IP in this design is from outside (ETA/Valjoux). All the tricky side of it, the tolerancing, productionisation and so on was hard won by Valjoux a long time ago. Making it to drawing is easy peasy; simply substituting another material and upgrading with a few bushes and bits and bobs no great shakes. I have no evidence but would surmise Hublot still buy in the geartrain and possibly escapement from ETA. And, you can anglage and polish it till you can see your face (think Lemania 2310 in Patek 5070) but it doesn't change its genes and the fact that Hublot had NO part in creating the base clever, super cheap and effective tractor. However, admittedly, what they've done is at least one step - no let's be generous two steps - up from buying in a finished movement.

In the end, YOU pays your money and takes your choice. No thanks.

Thanks to Speedmaster putting me onto this one.

Sunday, September 23, 2007

The Right Stuff: Inside the Omega Speedmaster



Old news, but I just wanted to make sure I recorded the links to this great piece of work. Tellingly a labour of love, beautiful pictures and animations give you the clearest view yet of the insides of the Speedmaster.



This was completed just around the time of Jack's regrettable departure from ThePurists. It was very timely considering the unfortunately botched 50th Anniversary Series of the Speedmaster.

Part 1
Part 2

Monday, September 10, 2007

Breitling Skyracer

Bravo Breitling. I'm not normally a fan of overpriced fashion brands, but Breitling deserve applause for this piece. They've obviously been paying attention and have produced a centre minute chronograph. Not only that, it's combined with a rotating timer bezel and a slide rule in a 200m water resistant package. Could this be the ultimate functional watch?

If you want a slide rule with more than hand splashing water resistance, the only other option is the Sinn 903. The trouble on the 903 is that the slide rule is slow to use; you have to twiddle the little knob round and round and round. The Breitling solution is neat with a little gear driving off the bezel driving the slide rule (a la former Breitling B-Series); you just grab the bezel and do the maths like a normal Navitimer.

Tuesday, September 04, 2007

Master Control 1000 hours Test Versus COSC

I appreciate the trials of the Jaeger-LeCoultre Master Control 1000 hour testing more than most having been very lucky enough to witness the facilities and meet some of the team who perform it. There is also no doubt that it was an additional influence in my decision to purchase a JLC as the test exceeded mere rate measurement including some shock testing, power reserve test, and most importantly testing the whole assembled watch, conducted over a 41.5 day period rather than the 15 of the COSC. It is a significant investment on the part of JLC that, frankly, most customers will rarely understand or appreciate (remember we are the minority) and it is a laudable effort to improve the delivered quality.

I am concerned however, that everyone seems to prejudge the COSC as "easy" and "obsolete" and take no account of some other less well known elements of the COSC test and their (actually quite stringent) timing standards (although we have debated their upgrade here and here and here).

Everyone has assumed MC 1000 hours is better. Based on what exactly? Well, probably, the usual situation on the Internet; where ubiquity equals "correct", where self-proclaimed hyperbole and website-cum-wikipedia meets to create "the-truth"? On the one hand the COSC is performed to a documented, published and publicly accessible procedure, on the other the MC 1000 hours is a self administered quality procedure for which there are no easily understood limits to the tests performed that I can find (someone once mentioned "-1s/d +6s/d") . (An explanation of part of the 1000 hours test report I made is here.)

I cannot comment on the tests outside of rate measurement and I can only make a comparison of the timing data from 1000 hrs test sheets, but I have made an interesting observation. Let's look at COSC first. It's less well known, but there are a lot more criteria than the simple "-4 to +6s /day" that are needed to be satisfied to qualify as a chronometer. ISO 3159 1976 sets it out to be precise.

Now, I have entered the data into a simple spreadsheet to simulate the watches likely performance, based on the timing sheets, over the 15 day COSC test (as close as possible considering JLC use slighty different temps 4, 22 and 40 deg C etc).

Example timing results from MC 1000 hours explained here

To plug these numbers into the ISO 3159 I've made the following assumption - The daily rate will be an average of the timings in any measured position for full wind and after 24 H. In the above example:
6H (VG) = +1 s/d. (average of 0 and 2)
3H (VH) = 0 s/d
9H (VB) = +3.5 s/d
DD (HB) = +2 s/d
DU (HH) = +1 s/d

We cannot get any variation in the same position (as we are using spot timing data), so we cannot get any sense out of Vbar or Vmax in fact! It should always be zero. However, we can get pretty solid numbers for Mbar, and particularly the positionally important D and P parameters. So for the above watch:

Mbar = 1.5 (-4/+6 s/d) Pass
D = 0 (-6/+8 s/d) Pass
P = 2 (10 s/d) Pass

Now take another MC 1000H watch. The timing results as follows:

6H VG +1 s/d
3H VH -4 s/d
9H VB +5.5 s/d
DD HB + 2.5 s/d
DU HH +0.5 s/d

The same process gives us:

Mbar = 1.1 (-4+6 s/d) Pass
D = 0.5 (-6+8 s/d) Pass
P = 5.1 (10 s/d ) Pass

So clear passes for both cases.

The MC1000H temperature test is from 4 deg C to 40 deg C. This compares to the COSC range of 8 deg C to 38 deg C. The variation in daily rate obtained on my RDM was +0s/d at 40 deg C and +4s/d at 4 deg C. That's -0.111 s/d per deg C compared to a COSC limit of 0.6 s/d per deg C. The COSC test is performed dial up, but I'm not entirely sure of the procedure for the MC1000H. Again, essentially I see this as a COSC pass.

It would be very interesting to assess some watches with the new Autotractor style balance that should exhibit better positional performance. I would imagine they will perform much better for 'P' than the older movement designs I have data for.

Here are the results for a calibre 822:


6H VG -6 s/d average between full wind and 24 hours running
3H VH -12.5 s/d
9H VB -0.5 s/d
DD HB 3.5 s/d
DU HH 2 s/d
12H VD -8.5

Gives us the COSC ratings as follows:

Mbar -2.7 limit of -4+6 s/d Pass
D -8 limit of -6+8 s/d FAIL
P 9.8 limit of 10 s/d Pass

Wednesday, April 25, 2007

Jaeger-LeCoultre Master Compressor Extreme LAB

We've been waiting years for some real changes in watch movements involving new materials and finally, JLC have produced the lubricant free(ish) watch. A Tissot Astrolon for the 21st Century. The Extreme LAB.

It is a fantastic development, but perhaps it is not quite there yet. Graphite powder in the main spring barrel seems to betray that achievement, but I am being churlish. The teflon and moly coatings in places with diamond like carbon-on-silcon escapement does qualify in my book. The question is, is it maintenance free though. Only time will tell.

Professor Birkin made the best comment I've seen on it yet:
MJLC should have housed the technology more discretely (as befitting their status with Patek and UN) in say the duometre. We would have all sat up and said WOW a little louder. They should have addressed the marketing a little better: "We believe that this watch should run without service, however, once in a while, if you feel you can part with it, we would appreciate your cooperation and have it returned to us for service (free of charge) and timing so that we can learn how the new technology is operating in everyday conditions and over a longer time frame. The watch is very much a partnership between you (the owner) and us (the watchmakers) and we hope that you will take this journey to learn about the new technology with us."

Tuesday, April 24, 2007

Jaeger-LeCoultre Duomètre à Chronographe - Brilliant but Pointless




















But then are not all mechanical watches? Brilliant but pointless.

Among the concerns I have about this piece, the main one is the obvious one. Is the claim of better timekeeping under chronograph operation achieved?

The barrel and balance wheel package has to be compromised so as to include two barrels and associated chronograph gear train. This leads to a 11.5 mgcm2 balance wheel at 21600 vph (a shocking 1/3 of the balance power of Autotractor) and modest power reserve. Is that trade-off worth it really? I wonder if there is poorer time keeping from the lower performance balance wheel and beat than is created by chronograph operation in a well designed clutch movement with a higher beat and higher inertia balance - take a Rolex 4130 for example.

Remember that under COSC testing there is a 24 our period of chronograph use that must not deviate outside 5 seconds or the criterion for Vmax would be failed (Greatest variation in rates ‘Vmax’ is the absolute value of the greatest of the five variations in rates with regard to the five positions of the watch during the first 10 days of the tests: allowed to be 5s). We debated how JLC's 1000 hour test stacked up against COSC testing here. However, I've never seen a chronograph tested over the MC 1000 hour.

It would need to be significantly better than the above 5s/d standard with/without chrono or it would be a pretty pointless complication. I would suggest that with all this effort it ought to be 0s/d different As ever, it would be nice to see some data from JLC. GAME ON!

Monday, April 16, 2007

Jaeger-LeCoultre Diving GMT - The New Deep Sea

We've all been sat on the edge of our seats for so long now waiting for a worthy JLC diver, it's hard to believe it's really here. Let's get one thing out of the way first. JLC, can you please brighten up the names a little, let's just keep the past names going shall we? Enough with the unmemorable Master Compressor Diving Pro Geo Extreme Alarm GMT Chrono or whatever, I name this ship the new Deep Sea range.

Polaris was a diver watch especially designed and produced for the American market between 1965 to 1970. JLC issued a watch called the AMVOX1 which drew inspiration from Polaris, but was in no way a proper dive watch (50m W.R. rating and illegible bezel). Talking to dealers, it's been a slow mover, make that s l o w. If you actually fancy it, it's easy to get heavily discounted, but I digress...

In fact, JLC felt the Polaris 're-issue' job was done with the Compressor Memovox and not wanting to repeat themselves in this new range, JLC depart from the rather unusual historical Polaris feature of an alarm to make a true hardcore diver.

I won't repeat PR packshots here, you can find them on other websites, but here are two 'real' shots from the UK Boutique launch event.

I handled two of the three pieces (this one and the chrono) and the Ti piece is very light. There's a bit of Hublot in there, a bit of Offshore and from side-on a Sinn U1 feel - in fact it is a bit tuna-canny. I guess there's only so many shapes you can play with for a dive watch... The blue oblong just above '6' is a running small seconds that tells you the watch is running* and gives the impression of an artificial horizon as it rotates and of course the subdial at '9' is the 24 hour time.

Criticisms? Well, I am surprised that the quick change bracelet has not been adopted, I would have found that useful; maybe it cannot be made secure enough for diving (see below). I was also not so impressed with the feel of the bezel. It needs to be tighter and maybe even 120 clicks per rev not just 60, but it was a prototype, so I'm sure that can be improved.

I was once in sea so rough I nearly had my mundane Seamaster lost from my wrist because the locking diving clasp was forced open, so I am always looking at bracelet security solutions with more than an average interest. I'm surprised to see the bracelet only clicks shut as per the standard butterfly clasp. It does retain the clever and useful JLC half link expansion system for sweaty days of desktop diving though, but more might be preferable if one really used this in anger at sea.

I'm told the silver bracelet screws will be made black in the production version. Personally I would prefer a plain titanium bracelet which I believe is possible and I still find it hard to love those confounded compressor keys.

Oh, and do not be put off by the 44mm, JLC have done their (now) usual trick of making it shrink by keeping lug length sensible. The size is perfectly acceptable on my small wrists. In fact it wears smaller on me than Compressor Memovox.

Don't get sucked into the limited hype, my advice? Wait for the non limited and cheaper stainless version.


*I don't believe blue is the last colour visible, data I've seen from Googling is saying violet. And that agrees with my notion of the absorption corresponding to wavelength, i.e. the last colour of the rainbow wins.

Is it about colour though? I'm not so sure either; it's about contrast. The darker it gets the less colour you can make out. Rods and cones in your biology lessons remember?

You don't have to dive too deep in my experience to find it quite dark especially on an evening octopus hunt or night dive, then you are operating with pretty monochrome vision and anyway you're using diving lights...... Then surely it would be better if the safety indicator disc was simply black and white - your eye is very good at detecting movement.

Bottom line? I just think the blue was more marketing than tech driven.