Jumbo Chrono

Limited edition of 30 pieces.

With a Coeur Ouvert® Dial

(The dial is open in the center)


This generously sized chronograph is equipped with the renowned Valjoux 7750 caliber, but with the date positioned at 4:30. To make each piece unique, the finishes of our movements may vary from one model to another, making them "different." While some calibers feature a ruthenium finish, for others the plates in the center of the dial are brushed and finished by hand.


The case is made of 316L stainless steel, water-resistant to 200 meters, with a screw-down crown engraved with our logo. It measures 46.5mm in diameter (excluding pushers and crown), with a total thickness of 17.20mm. The crystal is avery thick safety glass 4.6mm thick, and the steel case back is engraved. The lug-to-lug length is 55.95mm, but the lug curve allows it to fit even relatively slim wrists (see photos on my 17cm wrist).


The anthracite-bronze dial is open to reveal the movement. Its exceptional craftsmanship alternates between grained and circular brushed finishes. The counters are narrow, cut-out discs that conceal the center of the movement as little as possible.


This model comes with either a matching anthracite-bronze rubber strap with a stitched finish and a butterfly clasp engraved with our logo, or a second strap in black, orange, or khaki rubber with a pin buckle, designed for water sports.


Price: €3950 including VAT, with two straps.

Fréret Roy 1818 Sub Ocean Jumbo Chrono

Limited Edition of 30 pieces

Characteristics above

Price: €3950 including VAT, with two bracelets

Fréret-Roy 1818 Sub Ocean Jumbo Chrono Front PNG

Case back is engraved "Sub Ocean Jumbo Chrono"

Fréret Roy 1818 Sub Ocean Jumbo Chrono

Limited Edition of 30 pieces

Characteristics above

Price: €3950 including VAT, with two bracelets

Fréret Roy 1818 Sub Ocean Jumbo Chrono HD

Fréret Roy 1818 Sub Ocean Jumbo Chrono

Ruthenium finish

Anthracite-bronze bracelet and folding clasp

Fréret Roy 1818 Sub Ocean Jumbo Chrono

Finition "argentée" brossée à la main

Bracelet kaki et boucle ardillon

Fréret Roy 1818 Sub Ocean Jumbo Chrono

Hand-brushed "silver" finish

Orange bracelet and pin buckle

Fréret Roy 1818 Sub Ocean Jumbo Chrono

"Ruthenium" finish

Fréret Roy 1818 Sub Ocean Jumbo Chrono

Finition "argentée" brosée à la main

Choosing the bracelets for the Sub Ocean Jumbo Chrono

Standard box

The new standard cases are made of "taupe" colored synthetic leather, delivered with an outer box.

Designed to house a watch, they are a reasonable size (11cm x 11cm x 9.5cm)

This case comes standard with the watches. 

To order or buy

from our website?

Simply click on this link or below...

How to buy?

Photo of the prototype on my wrist (17cm)

Fréret Roy 1818 Sub Ocean Jumbo Chrono Wristshot

To order or buy

from our website?

Simply click on this link on the button...

How to buy?

Fréret Roy 1818

Sub Ocean®

Other models are sold out!

Fréret-Roy 1818, Sold out models!