Thumbnail [WTS] Zenith El Primero Chronograph 1

Thumbnail [WTS] Zenith El Primero Chronograph 2

Thumbnail [WTS] Zenith El Primero Chronograph 3

Thumbnail [WTS] Zenith El Primero Chronograph 4

Thumbnail [WTS] Zenith El Primero Chronograph 5

Model:	Zenith El Primero	Last Scraped:	June 18, 2025, 11:17 p.m.
Username:	scodbro	Location:	Unknown
Email:	Unknown	Feedback:	No Reviews Found

This Class 4 contains the well known & legendary El Primero cal. 400 movement, made in-house (of course) by Zenith. Case diameter 38 mm. This is a 31 jewel movement which is 30mm in diameter, and 6.5 mm thick. The movement contains 280 components, of which 225 are different. According to Zenith, the El Primero is one of the few, if not the only chronograph movement currently in production that runs at 36,000 alternations per hour. This technically permits resolution down to 1/10th of a second. For reference, the ubiquitous Valjoux 7750 runs at 28,800 alternations per hour, which I believe is more than sufficient precision for a chronograph. Chronograph functions in this movement are coordinated by column wheel. The El Primero winds bi-directionally, and has a power reserve in excess of 52 hours. A few flea bites on the case. Clear crystal. Accurate to within 6 sec/day. Date: https://albums.memento.com/post37958 Album: https://albums.memento.com/post68052 $2375 NET; negotiable to a degree.

First Posted:	17 hours ago	# of Reposts:	2
Starting Price:	$2,375	Price Change:	same price

Hide Reposts (1)

First Posted	17 hours ago	[WTS] Zenith El Primero Chronograph ref 01.0500.400		$2,375
Repost	13 hours ago	[WTS] Zenith El Primero Chronograph		$2,375

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Highest:	$14,000	Lowest:	$2
Median:	$5,500.00	Std. Dev:	±$3,046.04

Estimated Private Party Value $3,143 — $7,093


	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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