Model:	Sinn 556i	Last Scraped:	April 14, 2025, 2:17 p.m.
Username:	vicari41	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

For Sale: Sinn 556i – Excellent Condition – $975 Shipped (US Only) Up for sale is my Sinn 556i, a modern minimalist classic with one of the deepest, glossiest black dials in the game. This watch is in excellent condition and has been very lightly worn—just a few weeks total over the past year. I purchased from the original owner who purchased it brand new, but it spent most of its time sitting in the watch box. Originally bought on the Sinn leather strap, with under an hour of wear time it’s essentially new and unworn. Currently, the watch is mounted on an Uncle Seiko President bracelet, which pairs beautifully with the case and adds a refined tool-watch aesthetic. The bracelet comes with extra links and a spare set of end links as well. This is a sharp, versatile, everyday watch with tons of personality. If you bought one new and wore it for a few weeks, this is exactly what you’d have in front of you—without the wait / costs. Price: $975 USD Includes: Watch, original leather strap, Uncle Seiko President bracelet (with extras) Shipping: CONUS shipping included Location: USA only please Feel free to reach out with any questions!

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Highest:	$1,575	Lowest:	$690
Median:	$1,200.00	Std. Dev:	±$181.53

Estimated Private Party Value $1,049 — $1,300


	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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