Thumbnail [WTS] Sinn 556. Box, Papers. $950 only ! 1

Model:	Sinn 556	Last Scraped:	Jan. 22, 2026, 1:17 a.m.
Username:	Watchex_Enterprises	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Hello All - I am putting for sale - Sinn 556. Box, Papers. Runs good. I am asking $950 + shipping . 📷 More Pics: [https://www.dropbox.com/scl/fo/ty3y7qvmt9e8ojo6sxvcc/AKLDltak5Y1VfwfzxN6FjMM?rlkey=nxklp79uaflac97ih3brwpof4&st=uunall9s&dl=0](https://www.dropbox.com/scl/fo/ty3y7qvmt9e8ojo6sxvcc/AKLDltak5Y1VfwfzxN6FjMM?rlkey=nxklp79uaflac97ih3brwpof4&st=uunall9s&dl=0) 📆 Timestamp: [https://www.dropbox.com/scl/fi/v4fhcfysn4g3x2kmkvvf7/Photo-Jan-14-2026-6-38-21-AM.jpg?rlkey=uhpapuda79sbfbtzerxu05a8q&st=yuskfo6s&dl=0](https://www.dropbox.com/scl/fi/v4fhcfysn4g3x2kmkvvf7/Photo-Jan-14-2026-6-38-21-AM.jpg?rlkey=uhpapuda79sbfbtzerxu05a8q&st=yuskfo6s&dl=0) Watch located in NJ USA. All my listings here: [https://www.watchrecon.com/?query=watchex\_enterprises&last\_days=0](https://www.watchrecon.com/?query=watchex_enterprises&last_days=0) watchex\_enterprises - WatchRecon I am very comfortable doing a facetime to show the watch if needed. Please PM me for any questions that you may have. I am certain it will go to a good home. Thanks for looking. \*\* 🛡️Buy with Confidence!! 700+ references. \*\* ⭐️Checkout my profile for other amazing watches. \*\* 📦All packages are shipped Fedex with insurance. \*\* 🌎Shipping accepted globally.

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Highest:	$2,000	Lowest:	$590
Median:	$1,250.00	Std. Dev:	±$291.40

Estimated Private Party Value $1,050 — $1,450


	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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