Omega

SuitbertW
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Some thougts....

Hi Tom,
first, as to avoid any misunderstandings- I'm not a watchmaker either

I've a bit trouble following the debate, as I get the impression this dispute  could be relatively easy solved
with beeing a bit less vague. Reading through some of the responses, it's missing the "thread" sometimes, as said, IMO.
I'll try and add my opinion point by point

- Speaking about the balance assembly in Rolex version of the Valjoux 727 - personally I'd fully agree and would have no
problem  to state that I'd prefer this anytime compared to (all) Omega chrono balance assemblies of the same perdiod.
If this comparison makes that much sense, is a diffferent issue - one would have to compare MSRP of the period forRolex did a
example as to see at least some base for a comparison. Otherwise it's just apples to oranges.
But no doubt IMO, Rolex did a wonderfull job reworking this caliber in the escapement area.
If this always and in any circumstance leads to better timekeeping - I'm not sure but it's likely Rolex Valjoux version
would likely achieve more constantly good results timingwise (especially considering several services in a movements lifespan, but
given a qualified service of course). On the other hand I'd not be surprised a good watchmaker could regulate most  of the Lemania
movements to similar or perhaps better results (depending skill and specimen).

- Jewelling......now, may I be so arrogant and ask if the watchmaker really is a watchmaker??
His reply at least raises some doubt - I'm quite familiar with both movements pointed out  - Lemania 2320 and Valjoux 727 and it's perhaps shocking, but the jewelling is precisely the same (if I'm not incredibly mistaken). 5 Jewels for the balance wheel/roller, 4 Jewels for the pallet, 2 escape wheel, 2 fourth wheel, 2 third wheel, 1 chrono runner and 1 minute register.   So, I'm really curious where the heck Valjoux made a better job in that regard.

Calling the Rolex version of Valjoux 727 "fast beat" is a bit of a stretch IMO as well - if I'm not mistaken it's 21'600 bpH - something which was already done by Valjoux (thus at least isn't really a Rolex effort alone)  and is more a slight update, IMO.
BTW, that's pretty much the same Lemania did when "updating" the 2310 - cal. 861.

As the base quote stands - it's very pseudo  technical and IMO doesn't make that much sense.
Getting more specific (if the comparison would make any sense at all) would  require at least limiting the discussion
to certain calibers and not one ot two calibers vs. a complete production of one brand chrronos.

Best  regards
Suitbert