Model:	Sinn 104	Last Scraped:	Nov. 24, 2024, 3:48 p.m.
Username:	Mark Theken	Location:	Unknown
Email:	Unknown	Feedback:	24 Reviews (100% )

Sinn 104 I ST SA 40 mm stainless steel watch on black leather strap.
My Sinn 104 is complete with the original boxes and papers.
The condition overall is excellent, the sapphire crystal is perfect and this Sinn watch is keeping excellent time.
This Sinn model has an automatic movement with day and date functions.
This model has a 200 meter depth rating.
The original leather strap is included as well as new black leather strap that is unworn.

My price of $990 includes overnight Fedex delivery.

Please review my transaction feedback posted on this forum.

Price: $990.00

Reputation and Feedback

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Always a pleasure to do business with Mark Theken

I recently purchased a Rolex from Mark. Everything went smoothly, great communication, the watch was overnighted from SC. I've purchased another Rolex and Tudor from him in the past, and it's always a pleasure to do business with him.
By knafel1983 June 3, 2020, 7:19 p.m. on WatchUSeek
Great buying experience with Mark Theken

Recently purchased a preowned Tudor Black Bay from Mark. Great communication via phone, text, email. Quick delivery. Watch was exactly as described. Highly recommend and hope to do more deals with Mark if the occasion were ever to arise .
By 04z March 12, 2020, 7:55 p.m. on WatchUSeek
Mark Theken is a great seller

Recently completed a high dollar purchase from user Mark Theken. He was easy to deal with and courteous, including sending additional pics at my request. He sent the watch fedex overnight, I had it in my hand in less than a day. Buy with confidence!
By Miller Time II Feb. 27, 2020, 4:36 a.m. on WatchUSeek
Mark Theken Smooth Transaction

Just finished a high end trade with Mark. Communication, shipping and quality was outstanding. Highly recommended.
By CCURT88 Feb. 8, 2020, 3:21 p.m. on WatchUSeek
Mark Theken is a great trader!

Just completed a high end trade with Mark. Everything went great, watch was as described. This is my second transaction with Mark, over ten years apart, hopefully not the last. He’s a great guy to deal with.
By islandlife Oct. 2, 2019, 11:42 p.m. on WatchUSeek

Highest:	$2,000	Lowest:	$750
Median:	$1,200.00	Std. Dev:	±$277.84

Estimated Private Party Value $1,099 — $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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