Your watch, your way

Custom watches with a character of their own.

Start with warm chocolate tones and a glimpse of the movement. Then decide how much of the mechanism, how much colour and how much contrast you want to see.

  • Visible mechanics
  • Open and closed dials
  • Real build options
ModTime chocolate open-heart watch on wrist; existing store style visualisation; visible dial logo
Nautilus · Chocolate Open Heart

The considered edit

Find the details that speak to you.

Open-heart, skeleton-style and closed-dial designs are labelled individually. They offer different views, rather than one interchangeable feature.

Filter and sort

Each link opens the shown configuration. Check the current price, fit and available options on the product page.

The story behind the choice

Some details deserve a closer look.

The Chocolate Open Heart is the starting point: a warm dial, rose-gold tones and a small opening that reveals movement beneath. Other builds show more of the mechanism, while a closed dial gives its colour and markers more room. Your choice is about what you enjoy looking at every day.

For the movement itself

An open-heart aperture adds a visible mechanical detail without opening the whole dial. Look at the balance area, the surrounding markers and the way the display reads together.

For a stronger impression

Skeleton-style dials create a more open appearance. Compare the actual watch photographs: the extent of the cut-outs and the movement view vary by model.

For colour and clarity

A closed black dial offers a different kind of character. It belongs in this comparison because visible mechanics are a choice, not a requirement.

A little help choosing

How much would you like to see?

Compare the dial first, then the case shape and finish. Choose among the options actually offered on the product page; the guide does not imply an unlimited custom design service.

Open heart

A defined aperture offers a glimpse of the movement while keeping much of the dial intact. Chocolate and black create different surroundings for that detail.

Skeleton style

A more open dial makes the mechanism part of the visual composition. Check each image rather than assuming every skeleton-style design reveals the same components.

Closed dial

Horizontal texture, markers and colour can be the focus instead. The Silver Black Nautilus is clearly a closed-dial comparison, not an open-heart model.

The details, side by side

Compare your starting points.

These are details from the individual listings. Options can differ even within the same watch family.

NAUTILUS WATCH MOD ROSE GOLD CHOCOLATE OPEN HEART DIAL

Movement
NH38 automatic movement
Listed size
Shown option
LOGO / 3 ATM
View this build

NAUTILUS WATCH MOD ROSE GOLD BLACK OPEN HEART DIAL

Movement
NH38 automatic movement
Listed size
Shown option
LOGO / 3 ATM
View this build

NAUTILUS WATCH MOD SILVER BLACK OPEN HEART DIAL

Movement
NH38 automatic movement
Listed size
Shown option
LOGO / 3 ATM
View this build

Hand-assembled by ModTime

A considered choice. A clear next step.

Choose your model and the options actually offered. Read the current build, shipping and warranty information before ordering. Need help with a particular wrist size or date? Ask us first.

Before you choose

A few things worth knowing.

What does open heart mean?

It describes an opening in the dial through which part of the mechanical movement can be seen. It is a visual feature, not a separate power source.

Is open heart the same as a skeleton watch?

No. Open heart usually reveals a defined area. A skeleton-style dial has a more open appearance. The amount of movement visible depends on the specific build.

Which movement is listed for Chocolate Open Heart?

The current Chocolate Open Heart listing specifies an NH38 automatic movement. Check the product page for the complete specification and available configuration.

Are all watches on this page open heart?

No. The page compares open-heart and skeleton-style builds with a clearly labelled closed-dial alternative. The full open-heart collection is a separate catalogue.

What can I choose when ordering?

Only the options actually offered on each product page. Availability of logo, water-resistance and other choices varies. This guide does not promise bespoke dial design or engraving.

Who builds the watch?

ModTime is an independent custom watch builder. These builds are not presented as factory watches or endorsed models of another watch brand. Refer to ModTime’s current warranty and support information for aftercare.

A different starting point?

Explore another story, or find the full family you already have in mind.

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ModTime is an independent custom watch builder. Style and movement references do not imply affiliation, authorisation or endorsement by another watch brand.