Here is the result of some compilation work about Omega and Lemania Timers. It's based on my own collection, some old Omega and Lemania catalogues and of course the Omega "A Journey through time" book from M. Richon. I'd be very happy to get more information... but it's hard to find... let me know...






Most serial numbers on Omega Timers are Lemania serial numbers and very little is know about it as all Lemania archives were lost. Here a graph that can help to date a Lemania serial number:
** crowns changed from round to cylinder around 1962.

 

Very interesting! Thank you for your efforts.

 

I love a well researched post like this.

 

Not really into stopwatches but appreciate the effort that must've gone into this!

 

Great work!

I will check up if I have some other variations in my collection.

 

Well done!

 

Wow, great work. I bookmarked it.
Partially on topic: does anyone know where to find a replacement crystal for my MG6301? I can't find it on ofrei or on cousins.

 

( two of my stopwatches and pictures courtesy of @Alpha )

Have a Lemania split second


And a Omega 8300 ( Prestons scientific ? )

 

Looking great

 

Both are included:
The first is the one I call MG????F
The second one is an "industry timer to 1/5th split second" reference MG1176

 

Thought being different dial variations
First Lemania is MG????G ( better pic of both hands )

 

Great information, thanks. Mine seems to be MG1176 (has calibre 5600). Serial is just over 1 million so late fifties and not forties as I thought.

Regards, Chris

 

Yes, MG????G, I didn't see the rattrapante hand

 

An excellent summary/collection. Great work.

I can offer a couple of points:

1. Regarding the 65mm-cased 53.7 rattrapante (beautiful!) movements in chronographs (e.g. the MG1155/201 1130 Rattr and MG6713 1131 Rattr) you show these movements as being 18,000 bph – they are in fact 36,000 bph.

1. You don’t include the Cal.206 (mentioned in AJTT) – an important, high-quality version, used in observatory competitions etc.

More per PM!
Tom

 

I have this cal. 40.1 Sport 1/5 and i have not been able to finde the reference on it. I cant find the 40.1 Sport 1/5 in your chart.

 

This is the grand father of the MG1166 with a nice true Omega 18''' movement

 

This Prestons cal. 5601 i have never found a reference on

 

A typical MG1175...

 

Thanks

 

I is called MG1166 then or had it an other reference?