There are only a few "jumping second watch" in the world. From what I know, these jumping seconds watch consists of the famous Rolex Trubeat 6556, and the Doxa jumping seconds using the Chezard Cal. 2-115 dead beat 21-jewel mechanism. I have seen a West end as well.
Doxa was founded in 1889 in La Chaux-de Fonds by Mr Ducommun. The Doxa jumping second watch equipped with calibre Chezard 2-115, with 17 Jewels is often referred as the rolex Tru-Beat cousin.
It's called a "dead seconds" or "jump seconds" movement because the seconds hand jumps from second to second like a quartz watch, but in fact, it's a mechanical watch.
While traveling, I am lucky to find one Doxa jumping seconds where it is extremely rare. There are only a few on web sites around the world and I am luckyto find to one in amazing minty condition. The silvered dial with dauphine hands and gold embossed markers is unrefinished and close to mint.The details: The case, gold-capped bezel and stainless back, measures 35mm across, excluding the unsigned crown...by 42 mm from lug to beefy lug.The stainless steel back has some blemishing as the photos show, but nothing major.Vintage watch people tend to wear out the word "rare." But this time it applies.
I have seen one with Moonphase in Switzerland but the seller is asking for 4.55 times the price of this making it difficult for me to buy...