Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 1

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 2

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 3

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 4

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 5

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 6

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 7

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 8

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 9

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 10

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 11

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 12

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 13

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 14

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 15

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 16

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 17

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 18

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 19

Thumbnail [WTS] 1966 Omega Constellation “Hidden Crown” ref. 168.004 (Cal. 561) – serviced Jun 2025 – $675 shipped 20

Model:	Omega Constellation	Last Scraped:	Jan. 26, 2026, 1:17 p.m.
Username:	Brave_Word_9042	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Hi everyone, For sale is a 1966 Omega Constellation ref. **168.004** with the sleek **hidden crown** case design. It’s powered by the correct **Omega Cal. 561 chronometer** movement. Serviced in **June 2025**. Important note on the dial: it is **original**, but it **likely went through a cleaning attempt** at some point. Please review the close-up photos. **Condition** **Dial:** Original, but shows signs of a past cleaning attempt; spotting/texture visible. **Case:** Original case, likely unpolished, with honest scratches from normal wear. **Crystal:** **New aftermarket replacement**. **Crown:** Hidden crown style; operation as expected. **Movement:** Omega Cal. 561, serviced June 2025. Timegrapher photo included. **Strap/Buckle:** **New aftermarket strap and buckle**. **Specs** * Brand: Omega * Model: Constellation “Hidden Crown” * Reference: 168.004 * Year: 1966 * Movement: Omega Cal. 561 * Case: Stainless steel, **35mm (without crown)** * Crystal: Aftermarket replacement * Strap/Buckle: New aftermarket **Price: $675 USD shipped** Includes insured shipping. **Payment & Terms** Payment via Wise, bank transfer, crypto, or PayPal F&F (G&S is also an option with fee on buyer 's side - +4.5%). No return; photos/description are part of the sale, please ask questions before buying. Happy to share more pics/videos if needed. **Vintage watch note:** Vintage watches are not waterproof. Even if gaskets were replaced during service, these were not built for modern water resistance—please keep it away from water, humidity, and steam.

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Highest:	$3,000	Lowest:	$4
Median:	$1,150.00	Std. Dev:	±$563.89

Estimated Private Party Value $820 — $1,500


	Established:	1848
	Website:	https://www.omegawatches.com/
	Country of Origin:	Switzerland

Founded at La Chaux-de-Fonds, Switzerland in 1848 by 23-year-old Louis Brandt who assembled key-wound precision pocket watches from parts supplied by local craftsmen. He travelled throughout Europe selling his watches from Italy to Scandinavia by way of England, his chief market. After Louis Brandt's death in 1879, his two sons Louis-Paul and Cesar, troubled by irregular deliveries of questionable quality, abandoned the unsatisfactory assembly workshop system in favour of in-house manufacturing and total production control. Due to the greater supply of manpower, communications and energy in Bienne, the enterprise moved into a small factory in January 1880, then bought the entire building in December. Two years later the company moved into a converted spinning-factory in the Gurzelen district of Bienne, where headquarters are still situated today. Their first series-produced calibres, Labrador and Gurzelen, as well as, the famous Omega calibre of 1894, would ensure the brand's marketing success.

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