Model:	Sinn U50	Last Scraped:	Feb. 2, 2026, 10:17 p.m.
Username:	ceebee	Location:	Unknown
Email:	Unknown	Feedback:	18 Reviews (100% )

I am the original owner of this LNIB Limited Edition Sinn U50. Purchased in June 2025 and only worn for show and tell. You would not know the difference between this one and a new one. No problems at all, since it is rarely worn.
Comes with everything just as from Watchbuys.

Selling for 3000.00 net to me and I will ship via USPS in the US only. Long time member and seller with plenty of positive feedback.

All images just taken 2/1/2026. Please forgive any dust.

Price: $3,000.00

Reputation and Feedback

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Fantastic dealing with ceebee!!!!

Just finished a deal with ceebee aka Chris and i would not hesitate to work with him nor should you. Communication was excellent and payment Johnny on the spot! An all around nice guy and pleasure to do business with. Deal with confidence!! Sent from my iPhone using Tapatalk
By sallynstan June 20, 2020, 9:47 p.m. on WatchUSeek
ceebee is a great seller!

I had a smooth transaction with ceebee. The watch bracelet he sold me was perfect. It arrived a day earlier than promised. Thanks!
By btrain March 28, 2019, 7:48 p.m. on WatchUSeek
ceebee - another great transaction

Just bought a beautiful watch and accessories from Chris - all was just as described, similar to many others' experiences with him. The package was was shipped the day I made payment. Thanks, Chris!
By GDI Feb. 23, 2019, 7:31 p.m. on WatchUSeek
ceebee is a great seller!

What can I say? Ceebee undersold and overedelivered. Watch arrived beautifully packaged and a scant 6 days after I sent payment . Communication was quick, accurate, and courteous throughout. Thank you for a great, smooth transaction, ceebee. Buy from him with confidence.
By Darwin Feb. 20, 2019, 1:39 a.m. on WatchUSeek
Ceebee is a great seller!

My first non face to face transaction and couldn’t be happier. All messages were answered promptly and even spoke on the phone for assurance. Tracking sent right away and The watch arrived very quickly, exactly described! Thanks for such an easy transaction! @ceebee Sent from my iPhone using Tapatalk
By Chacjay Feb. 18, 2019, 12:40 a.m. on WatchUSeek

Highest:	$3,799	Lowest:	$1,575
Median:	$2,700.00	Std. Dev:	±$465.30

Estimated Private Party Value $2,425 — $3,000


	Established:	1961
	Website:	http://www.sinn.de/de/
	Country of Origin:	Germany

Sinn Spezialuhren GmbH is a manufacturer of mechanical wristwatches based in Frankfurt am Main. The company was founded in 1961 by flight instructor and pilot Helmut Sinn under the name ‘Helmut Sinn Spezialuhren’.

Following its foundation in 1961, the company focused on the manufacture of navigation cockpit clocks and pilot chronographs and sold these through direct selling, bypassing retailers. The clocks and watches were produced according to pilot Helmut Sinn’s specifications in the private label sector in Switzerland. By eliminating the trade margin of the retailers, the company was able to offer its clocks and watches at a lower price than through traditional sales channels.

In 1994, Helmut Sinn sold the company to Lothar Schmidt. Following the sale, he acquired Swiss watchmaker Guinand in 1996. In 1998, he set up a new company in Frankfurt am Main. With this company, he offered brand watches from Jubilar, Chronosport and the newly acquired Guinand. In 2006, he retired from business activity. Since handing over the management of the business to his long-standing employee Horst Hassler, he now acts as an advisor to the company. On September 3rd 2016 Helmut Sinn celebrated his 100th birthday.

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