Today's offering showcases this exceptional new-old-stock example of one of Croton's sought after vintage Chronomaster Aviator Sea Diver chronographes. It is a very cool retro watch with exotic camo green dial from a brand that has become increasingly collectable.

Despite what the photos seems to suggest all markers on the bezel present perfectly.

The Chronomaster Sea Diver represents a moment in Swiss watchmaking when ambition mattered more than categories. It is one of those watches that quietly bring together several collecting categories into a single, coherent object.

In the 1960s and '70's, brands like Croton were not trying to make “a diver” or “a racing chronograph” in isolation - they were trying to build a single wristwatch capable of handling anything its owner might reasonably ask of it. The Chronomaster is the result of that thinking: a true multi-role instrument that blends aviation, diving, and motorsport functionality into one cohesive and very wearable design.

The dial is what first sets this watch apart. Its deep green tone - camo or military green - is highly unusual for the period and dramatically rarer than the black and silver dials that dominate vintage chronographs of this era. It gives the watch a purposeful, almost tactical presence, while still remaining refined and legible.

The contrasting black subdials add depth and clarity, and the overall layout feels intentional rather than decorative, prioritizing instant readability under real-world conditions.

Functionality is layered thoughtfully across the watch. The rotating bezel is genuinely useful, allowing elapsed-time measurement or secondary time-zone tracking depending on how it is indexed. The tachymeter scale reinforces its chronograph credentials, making this a watch equally at home timing speed, distance, or duration. Nothing here is superfluous; every element exists because someone, somewhere, would have used it.

Powering it is a Landeron 248–based manual chronograph movement, part of the backbone of Swiss chronograph production in the post-war decades. Landeron movements were widely used for their robustness and reliability by many well-known makers producing serious tool chronographs. This is a movement chosen for durability and serviceability - exactly what you would expect in a watch designed to be worn, used, and trusted.

And yet, despite being conceived as a rugged instrument, the Chronomaster wears with surprising fashion. The case is full-size without being bulky, with strong geometry and clean transitions that feel resolutely mid-century rather than modern. It has presence without excess, confidence without aggression - the kind of watch that looks as correct with a leather flight jacket as it does under a cuff.

Finally, and almost impossibly, this particular example has survived as a true time capsule. It is unworn, and appears never sold at retail. It still bears its original protective caseback sticker.

While we have on a very few rare occasions seen on the internet less than a handful of Chronomasters with green dials - our extensive research couldn't find another one of this exact reference with a green dial. While we're not suggesting that it's the only one that was made, you might never stumble across another.

Here are some its features:

* Deep camo green dial is highly unusual for the period and immediately sets this watch apart from the sea of black and silver chronographs of the era.

* Landeron 248 based engine - Landeron movements were used by Heuer, Baume et Mercier, Gallet and many others in their vintage chronographs

* Revolving bezel with both 60 minute and 12 hour markings, suitable for using as a GMT or second time zone or for timing uses

* Tachometer scale for measuring speeds

* Rugged retro full size waterproof style case with screw back

* Easy to read luminous hands

A very rare new-old-stock Chronomaster. You won't be disappointed with this gem.

Manufacturer: Croton
Country of origin: Switzerland
Year built: c. 1970's
Functions: Hours, Minutes, Chronograph, Seconds
Designed for: Mens
Case material: Stainless steel
Case condition: It is true unworn and believed never sold new-old-stock still protected by its original sticker on the back - a very rare time capsule piece! The factory finishing is so sharp it could nearly cut your finger if you pushed hard enough. Despite what the photos seems to suggest all markers on the bezel present perfectly.
Dimensions: 38mm wide (excluding crown), 48mm lugs tip-to-tip
Dial: Camo green with black contrasting subdials for the continuous seconds and 30-minute registers, tachometer scale, luminous baton applique markers, original, new-old-stock condition with beautiful lightly toned luminous
Hands: Original, whitened luminous "batons" with blackened steel sweep hand
Movement type: Signed Croton, Landeron 248 based, manually wound, rhodium plated, shock resistant
Movement markings: Croton Watch Co. , Unadjusted, Seventeen Jewels, Swiss
Jewels: 17 rubies
Band: Leather, fully stitched, padded, brand new and unworn with unsigned buckle that is well-suited for the watch. We also stock lizard and a variety of other straps in various prints, skins, and colors. Please ask us if you're interested.
Crystal type: Original, excellent condition with light scuffing and storage wear
Serviced: Because it is just as if left the factory, we left it untouched. If you would like one of our Master Watchmakers to perform its first servicing, please inquire.
Timing: Timed to precision on a state-of-the-art computerized system.
Warranty: 1-year warranty. Please email concierge@cotwatches.com for details. Your watch is important to us, and we will take care of it for its lifetime. We provide the best after sale care in the business with an extremely experienced team of four Master Watchmakers all of whom each have over thirty-five years of experience and a large number of parts. One used to be the watchmaker for an authorized Rolex dealership and was given special training by Rolex at their Beverly Hills Service Center.
Box/Papers: BOX - Connoisseur of Time watch presentation box; PAPERS - Custom printed Connoisseur of Time Certificate of Authenticity; New timing certificate
Returns: 7 days full refund. 100% satisfaction guarantee

We offer a 100% satisfaction guarantee for all of our watches. If you are in any way unsatisfied with the watch we will fully refund the purchase price anytime within 7 days after the watch has been received. Our goal is to exceed our client's expectations throughout the buying experience.

All watches are packaged carefully and mailed double boxed in specially constructed, reinforced shipping boxes designed for high value items. All watches are sent fully insured with signature required. Most of our domestic shipping is done through FedEx. At times we will also use USPS Express Mail, and we can accommodate most requests for your preferred carrier. International shipments are sent USPS International Express Mail or FedEx.

The purchase price will be the declared value of the merchandise on any required customs forms. The payment of all customs duties, tariffs, and taxes are the responsibility of the buyer.

Also note that water resistance of vintage watches can no longer be guaranteed and is not covered under the watch's warranty. We do not recommend getting a vintage watch wet, even one that was originally designed to be waterproof.

To get an idea of how this watch will look on the wrist, please use the Watch Sizing Guide

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