Thumbnail [WTS] Unused SINN 144 St Sa German automatic military pilots day/date chronograph, Swiss ETA 7750. 1

Thumbnail [WTS] Unused SINN 144 St Sa German automatic military pilots day/date chronograph, Swiss ETA 7750. 2

Thumbnail [WTS] Unused SINN 144 St Sa German automatic military pilots day/date chronograph, Swiss ETA 7750. 3

Thumbnail [WTS] Unused SINN 144 St Sa German automatic military pilots day/date chronograph, Swiss ETA 7750. 4

Thumbnail [WTS] Unused SINN 144 St Sa German automatic military pilots day/date chronograph, Swiss ETA 7750. 5

Model:	Sinn 144	Last Scraped:	June 29, 2025, 8:17 p.m.
Username:	Aleksdrew	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Unused SINN 144 St Sa. German automatic pilots dsy/date chronograph. Reference #144 0147. Swiss ETA 7750 movement. Stainless steel case, sapphire crystal, screw down crown. New from old stock (store display). Unused. Working and keeping time, everything works as it should - chronograph, day/date. Non original leather strap. Comes with the box, no papers. Asking US$ 1500 obo, no trades. Worldwide shipping.

Reputation and Feedback

This seller did not provide contact information in the listing description. You must be a member of Reddit to send them a private message. If you are not already a member, request a new account at https://www.reddit.com/register/.

No feedback was found for this seller. Although this does not mean the seller is untrustworthy, you should exercise caution in dealing with them.

Also keep in mind: TimeZone, Chronotrader, Seiko & Citizen Watch Forum, and Wrist Sushi do not have dedicated feedback forums.

Highest:	$3,750	Lowest:	$1,480
Median:	$2,805.00	Std. Dev:	±$689.50

Estimated Private Party Value $2,275 — $3,075


	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.

View Brand Page

Affiliate links: WatchPatrol may receive a commission if you purchase a product from eBay.

	Vintage Sinn 144 Automatic Valjoux 7750 Automatic Chronograph 41mm hourhousehorology (1782) eBay (US) • Buy It Now	$2,500.00
	Sinn 144 Chronograph Day-Date 144 #1552 gt.bernard (3674) eBay (JP) • Buy It Now	$2,491.54
	Sinn 856 UTC Black Fully Tegimented on H-Link Bracelet spinnerbait79 (392) eBay (US) • Buy It Now	$1,900.00
	Sinn U1 S Rare Blue Dial Black Tegimented Submarine Steel Automatic Diver 1000m fqhhx_12 (4) eBay (US) • Buy It Now	$1,950.00
	Sinn 757.P Fliegerstaffel Limited Chronograph Cal.7750 Automatic Watch 250pcs tokyo_show_time_japan (20) eBay (JP) • Buy It Now	$1,999.00