Thumbnail [WTT] Sinn 756 tegimented on bracelet, box, and tool RESERVED 1

Model:	Sinn 756 S	Last Scraped:	Sept. 3, 2025, 8:17 p.m.
Username:	bettenco	Location:	Unknown
Email:	Unknown	Feedback:	113 Reviews (100% )

Trade pending with u/itsallskewed

Reputation and Feedback

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bettenco is a Great Trader!

I just had a super smooth trade with bettenco. I would gladly buy, sell, or trade with him again! Sent from a magical unicorn
By surrealblu June 27, 2020, 1:09 p.m. on WatchUSeek
Bettenco is an excellent seller!

Just received a grail watch I bought from Bettenco. Great and pleasant communication, and easy to deal with. Watch shipped immediately and it is exactly as described. I can highly recommend Bettenco, and would happily buy from him again! Sent from my BBF100-2 using Tapatalk
By marcoscova June 27, 2020, 1:04 p.m. on WatchUSeek
Great deal with Bettenco!

Just traded up watches with Bettenco and the deal couldn’t have went smoother! Answered all of my nagging questions promptly and was fair and honest. I would most definitely deal with him again! Sent from my iPhone using Tapatalk
By Bd314005 June 9, 2020, 10:32 p.m. on WatchUSeek
Great purchase experience with Bettenco

I recently purchased a Tudor Ranger ! from Keith . Great communication, watch as described and one of my favorites. Buy with confidence. Morgan Sent from my iPhone using Tapatalk
By MColeman June 9, 2020, 2:57 a.m. on WatchUSeek
bettenco Keith is great!

Great trade on $4k watches with no issues, great communication and packaging. Got a beautiful IWC watch I had always considered picking up. Deal with Keith in confidence. -Jeremy / smoothiekingfan Sent from my SM-G930V using Tapatalk
By smoothiekingfan May 27, 2020, 3:18 a.m. on WatchUSeek


	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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