Girard Perregaux

... I think that describes these very early Gyromatics quite accurately. I also love the font of the numerals. ...  

Nice font on the numerals and no date. Nice. M4

Very similar to yours, dated circa 1955/1956 ...  

Mine is a Ref. 6170 and also has a Cal. 47 (ETA 1256). I am not 100% sure what the letters next to the Calibre Number on the rotor mean, but I assume these are wn indication of how old the calibre batch is - mine is a 47 A, yours a 47 BF. Maybe some of th... 

Yes, the font is great. Slightly italicized. Or is that my imagination? I like the hands also. Must give you a lot of pleasure.

You are right, the font of the numerals is slightly tilted to the right and the highlights are the open and curled 6 and 9. Blued hands on eggshell patina dial also work really well for me.

Could be a kind of series number indeed.

Thanks for sharing this shot of this vintage classic. 🤝

These early Gyromatics are one of the best kept secrets in vintage watches next to Movado and a few other criminally underrated brands/models.

I always think that when I hear the words “under appreciated “ and such. I think many are afraid to buy vintage watches. I no exception. I only have one vintage GP. But I have many NEO vintage. Here is a pic of my lunar dial vintage GP. 🤝 ...  

That is a very very nice Vintage GP you have there, I would love to have one in my personal Collection as well along with a 1st Gen. Deep Diver with the "Lume Filled Triangle" Dial (Ref. 7254) and/or maybe a Ref.9034 with the "Flag Dial" or "Casino Dial" ... 

The deep diver Gen 1 GP Deep Diver first generation from 1957 with chevron indexes and radium lume. I know it. Difficult to find. And condition is paramount. FYI, I just saw a lunar dial listed on chrono24 yesterday. I can see the appeal of UG vintage. Ex... 

Condition Condition Condition You are 100% right - that is paramount and makes it even more hard but also rewarding to collect super rare pieces like the 1st Gen Deep Diver. I mean I would also love a nice Rolex 5512 or 5513, but to buy one in great origi...