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Zenith El Primero Chronomaster Guilloche Ref.: 01.0240.410 – 39mm

Zenith El Primero Chronomaster
(for price evaluation please consider below information)

We guarantee that the item we are selling is an original Zenith watch. We are offering 12 months of WARRANTY for the mechanism.
This watch comes with original box and WITHOUT papers. The watch works perfectly.
We guarantee that all the parts are original Zenith and we can provide you with the test results of the mechanism.

Brand: Zenith
Type: El Primero Chronomaster
Reference no.: 01.0240.410
Movement: Zenith 410 automatic, 354 parts, 11 complications
BPH: 36000
Year: after 2001, no rotor number, guilloche dial
Diameter: 39 mm
Bracelet: original Zenith leather strap with double clasp in steel.
Crystal: sapphire crystal
Dial: white
Bezel: fixed
Functions: 11 complications: automatic, hours, minutes, permanent seconds, chronograph, minute counter, hour counter, date, day, month, moon phase
Case material: stainless steel
Gender: male
Condition: 10/10


Out of stock

Category: ID: 4130
Zenith El Primero Chronomaster Ref.: 01.0240.410

Zenith presented the ChronoMaster at the Basel fair in 1994.
That was a good year for Zenith when during one and the same year they launched the 6 series (Elite movement), the calibre 420 hand wound El Primero (Zenith Prime) and the Zenith ChronoMaster (calibre 400 or 410)! You could choose between calibre 400 El Primero automatic chronograph with date or calibre 410 with date, day, month and moon phase. The calibre 400 or 410 were of course not new.
What was new about the Zenith ChronoMaster was the careful effort put into the design (in a classical 1950’s style), the name “ChronoMaster” (which can also be traced back to the 1950’s), and the seasoning with a chronometer certificate.
When they were introduced all Zenith ChronoMasters were COSC certified chronometers.
Although the Zenith El Primero is a born chronometer, AFAIK it was the first time that Zenith took the trouble to get COSC certificates for the El Primero.
This short introduction and overview will further focus on the most iconic model: the moon phase ChronoMaster (cal. 410), and only during the early years (1994-98).

On completion of the take-over in 2002 a few Zenith models were discontinued (Rainbow, Zenith El Primero HW,…).

But the ChronoMaster stayed on and even multiplied in many new models and sizes.

However the design changed from a sober and classic (grand)father’s watch, to a modern baroque style with guilloche, open dials. The cases also became bigger and bigger (three different sizes were now available: 40, 42 and 43 mm).

But the stepped case style remained and until ca. 2010 among the great variety of ChronoMasters that now existed you could still find more or less the same classic ChronoMaster.

After Zenith modified the movements, resulting in the new calibres 400 Z and 410 Z, it seems there followed an increase in production during the following years. The majority of ChronoMasters now consisted of cal. 410 Z.

However after 2001/2002 the rotor numbers were not used any more and COSC certificates were no longer given by Zenith, and this also makes it difficult to estimate the numbers produced after 2002.

Watch condition (refer to photos)

All images are from the actual watch for sale (WE NEVER USE INTERNET BASED PICTURES). To avoid any misunderstanding regarding scratches etc., please view carefully all images of the watch you’re interested in. The condition can be seen and judged on the picture.

Case: excellent condition

Clock face: excellent condition

Glass: excellent condition

Back face: excellent condition

Bracelet: excellent condition

Movement: fully operational / checked for performance, authenticity and functionality.


The recent comparable model Zenith El Primero Chronomaster Ref.: 01.0240.410 in steel with automatic movement and original Rolex bracelet has an retail of 6,900. – Euros, depending on watch condition and provided guarantees.

Please consider the unique design of this model combining modern elements of the horologers with the spirit and appearance of the original model launched by Zenith mid-century.

We accept payments by wire transfer to our company’s bank account, by PayPal or by credit card (VISA, MASTERCARD, etc.). Please note that goods will only be sent after agreed payment is visible into our account.

We are shipping our watches also internationally using insured shipping and only the most reliable shipping service by DHL. The shipping cost is supported by the customer and will be added on the invoice.

Sales processing

Immediate after your purchase, you will receive all payment information by e-mail. Your order will be dispatched with DHL within the next working day or within 36 hours after your payment has been received respectively. Incoming payments are checked several times daily via online banking and are forwarded to be shipped immediately.

Item and accessories will be delivered as pictured. Manuals, papers, certificate cards, booklets and boxes are only included in the delivery if mentioned in the description and/or shown in the pictures. The pictures show the actual watch you are buying. All pictures were taken by MD Watches.


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