Thumbnail [WTS] Sinn 104 St Sa I – Black Dial – Full Box & Papers – Brown Leather Strap – Great Condition 1

Model:	Sinn 104	Last Scraped:	Nov. 3, 2025, 3:16 p.m.
Username:	kyle_lee_banana	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

For Sale: Sinn 104i St SA Automatic Pilot's Watch - Very Good Condition. Time Stamp: [https://drive.google.com/drive/folders/1Yg1oxGHRKGyjHoCUuX4fRgnAm3GAuXuj?usp=sharing](https://drive.google.com/drive/folders/1Yg1oxGHRKGyjHoCUuX4fRgnAm3GAuXuj?usp=sharing) Video: [https://drive.google.com/drive/folders/1L6zWZKSdT8ylJslgEs6JvJBnbJNv1pev?usp=sharing](https://drive.google.com/drive/folders/1L6zWZKSdT8ylJslgEs6JvJBnbJNv1pev?usp=sharing) Images: [https://drive.google.com/drive/folders/1gkeYZr99ciovv3-xXwB-aU30f970\_ts9?usp=sharing](https://drive.google.com/drive/folders/1gkeYZr99ciovv3-xXwB-aU30f970_ts9?usp=sharing) This guy is both rugged and stylish. Comes with the Sinn leather strap. Some key features: **Model:** Sinn 104 St Sa I (Black Dial) **Movement:** SW220-1 automatic (Day/Date) **Case Size:** 41 mm **Lug Width:** 20 mm **Thickness:** 11.5 mm **Water Resistance:** 200 m **Crystal:** Sapphire front & back **Lume:** Super-LumiNova **Strap:** Original Sinn brown leather strap with signed buckle **Includes:** Full box, papers, booklet, warranty card. **Condition**: Gently used, almost no marks (all in the pictures). Strap have signs of normal wear. **Location**: Hanoi, Vietnam (Willing to meet in person if you're in Hanoi) **Asking price**: $980 + $60 flat shipping (via DHL/UPS express with tariffs/duty fee covered). Payment via PayPal F&F or G&S (+4.6% fee covered by the buyer). Not accepting trades. Thanks!

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Highest:	$2,200	Lowest:	$750
Median:	$1,400.00	Std. Dev:	±$321.21

Estimated Private Party Value $1,150 — $1,600


	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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