Elco Moon phase watch

Hello,
This is a watch I recently acquired - a calendar watch with moon phase, date, day of the week, and month. According to the seller, it's from about 1950, but I couldn't find much about the brand Elco, except that it apparently belonged to Erwin Leutz & Co. By googling, I could find a few Elco watches that are quite similar, but have their day of the week and month windows placed differently, higher on the dial.

It's a quite nice piece in my opinion, and wasn't too expensive for a calendar watch (but maybe one day I'll have a similar Omega!).

You can set the date by pushing the little pusher on right side lightly with a pointed object, and by pressing it more firmly, you can set the month. A light push on the left side pusher sets the moon phase and firm push sets the weekday.

The fact that the dial advertises "Incabloc" and "17 jewels" show that it can't have a been a very high-end watch, but seems rather nice nevertheless. A letter "R" is written on the movement and below it, a number that just might be 89 (the second number is hard to distinguish because it's covered by a wheel).

Any info on this watch? Do you know what movement this is?

Thanks!

Thank you! I searched a little, and apparently it was used by many brands, including Breitling. Here's a Damas watch almost identical to mine (quite a lot more expensive than what I paid): https://clocksavant.com/products/da...rare-valjoux-89-fully-serviced-by-clocksavant

Oh, and one more question: any idea what the letter R stands for on the movement? Just above the number 89, which must be ”Valjoux 89”. Thanks.

Ah, how logical! Thanks.

it looks really cool! love the whole layout. calender with moonphase is awesome!

Just acquired an Elco! interesting strap that i have to ask the seller who is the person....

pretty spot on, seller reply:
Greetings
this is a Soviet style strap with Gagarin
original straps from the 60s are relatively rare, I think this one is newer, maybe from the 90s