Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 1

Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 2

Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 3

Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 4

Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 5

Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 6

Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 7

Thumbnail [WTS] Sinn 556A “Flieger” – 38.5mm Pilot Auto – Box & Papers (Jan 2023) – $1199 Shipped 8

Model:	Sinn 556a	Last Scraped:	Oct. 31, 2025, 1:47 a.m.
Username:	Silver_Dealer_4932	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Condition – Great overall with light surface wear on case and bracelet from normal use. No dents, dings. Crystal and dial are clean. Crown operates smoothly, and the movement runs well. Bracelet brushing intact with minor desk wear; clasp closes securely. Set – Includes Sinn box, manual, and warranty card dated January 2023. Currently sized for a 7.0” wrist, includes three extra links (fits up to ~7.75”). Price – $1199 (Zelle or Wire). Apple Pay +$15, Venmo +$25. Shipping – Fully insured FedEx 2-Day within 24 hours of cleared payment. Timestamp – In photos. Overview – Sinn 556 A. A 38.5mm German-made pilot’s watch featuring a matte black dial, white Arabic numerals, and red seconds hand. Powered by the Sellita SW200-1 automatic movement, water-resistant to 200m, with sapphire front and back. Clean, versatile, and built to Sinn’s tool-watch standards.

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Highest:	$1,500	Lowest:	$975
Median:	$1,250.00	Std. Dev:	±$141.74

Estimated Private Party Value $1,124 — $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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