Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 1

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 2

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 3

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 4

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 5

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 6

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 7

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 8

Thumbnail [WTS] Sinn 140 St Black SZ-01 Caliber – Excellent Condition Pilot’s Chronograph 9

Model:	Sinn 140 A	Last Scraped:	June 30, 2025, 7:47 p.m.
Username:	wooly88	Location:	Unknown
Email:	Unknown	Feedback:	8 Reviews (100% )

Sorry for the wacky post. The website seemed to not let me post additional info but, lo and behold, it took it all! 😆

Reputation and Feedback

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wooly88 - Trusted Seller for High Value Buys

Hello, I just received my beautiful SBDX021 Forest Green Limited Edition MM300 from wooly88. All papers and hang tags included. Watch came as described. This was a high dollar transaction that went by without a glitch. I recommend highly.
By cycletronic2000 Jan. 10, 2020, 8:30 p.m. on WatchUSeek
wooly88 is an awesome seller!

Bought an Arnie re-issue from Ron, smooth transaction, would do business again. https://forums.watchuseek.com/f29/fs...n-5082109.html
By Jose Vargas Dec. 19, 2019, 1:45 a.m. on WatchUSeek
Wooly88 is a good, trusted seller!

I bought a Stowa Flieger from @wooly88 and it was easy, quick and pain-free. The watch is beautiful. This is a seller that can be trusted!
By Steve Hoffman Sept. 20, 2019, 7:26 p.m. on WatchUSeek
Wooly88 is a great seller!

I did my research and saw his previous feedback on the site. Was confident that I was dealing with a solid guy and happy to report that my confidence was well placed. Watch was securely shipped and sent the very next day after we settled on a deal and I …
By aedward5 Sept. 19, 2019, 1:29 a.m. on WatchUSeek
Wooly88 -- Great Seller!!

Fantastic to transact with -- Perfect communication and fast shipping. Piece arrived as described, beautiful: !
By mbk Aug. 27, 2019, 6:21 p.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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