Thumbnail [WTS] Zenith El Primero Chronomaster Open ref. 03 1260 4021 with Box 1

Model:	Zenith Chronomaster	Last Scraped:	Feb. 4, 2025, 9:47 p.m.
Username:	soycowboy	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

Zenith El Primero Chronomaster Open ref. 03 1260 4021 with Box The “open” referring to the visible 36000 frequency movement from above the dial, this chronograph has a lot to enjoy. While no service history, this one is humming a smooth 2 sec/day with a 300amp (ymmv) Videos, timegrapher and set : https://imgur.com/a/u9K058N Timestamp: https://imgur.com/a/W0EModL - no papers - open to Tudor, Omega and Rolex trades - local special: can possibly accommodate at ButterScotch in Downtown Long Beach by appointment - All sales final unless the watch is misrepresented or lost in transit (always fully insured) - Link to [feedback here](https://www.reddit.com/r/WatchExchangeFeedback/search?q=soycowboy&restrict_sr=1&sort=new) & [watchcharts here](https://watchcharts.com/repcheck/user/soycowboy?source=reddit&type=feedback) Asking a *negotiable* **$3450** via bank wire, Zelle, venmo, or possibly PayPal Friends & Family with super strong references or if I know you. Price includes fully insured Fedex shipping in the USA— hand delivery in most of the Los Angeles or Orange County areas with drinks or coffee on me ;). Cheers, Stephen

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Highest:	$9,800	Lowest:	$2,899
Median:	$6,299.00	Std. Dev:	±$1,508.33

Estimated Private Party Value $5,500 — $6,999


	Established:	1865
	Website:	http://www.zenith-watches.com/
	Country of Origin:	Switzerland

Zenith SA is a Swiss luxury watchmaker. The company was started in 1865 by Georges Favre-Jacot at the age of 22, in Le Locle in the canton of Neuchâtel. Zenith was purchased by LVMH in November 1999, becoming one of several brands in their watch and jewellery division. Jean-Claude Biver became Interim CEO in 2017, replaced CEO Aldo Magada, who replaced Jean-Frédéric Dufour in 2014.

Zenith has a long reputation for the quality and precision of their watches. It is one of the Swiss watch manufacturers that still produce their own movements in-house.

The El Primero calibre, which was first released in 1969, and still produced today, was one of the first automatic chronograph movements and has a frequency of 36,000 alternations per hour (5 Hz). This high rate allows a resolution of 1⁄10 of a second and a potential for greater positional accuracy over the more common standard frequency of 28,800 alternations per hour (4 Hz). The El Primero was honoured with a 2012 release of the El Primero Stratos Flyback Striking 10th, limited to 1,969 pieces (in honour of the original 1969 release date), that housed the same 36,000 vph movement and a sub-dial measuring in tenths of a second to make a complete rotation every ten seconds.

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