Chocolate open heart
NAUTILUS WATCH MOD ROSE GOLD CHOCOLATE OPEN HEART DIAL
Warm brown and rose-gold tones frame a small window into the movement.
NH38 automatic movement See product details
Nothing added at checkout
Your watch, your way
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.

The considered edit
Open-heart, skeleton-style and closed-dial designs are labelled individually. They offer different views, rather than one interchangeable feature.
Chocolate open heart
Warm brown and rose-gold tones frame a small window into the movement.
NH38 automatic movement See product details
Black open heart
A darker dial changes the contrast around the visible mechanism.
NH38 automatic movement See product details
Silver open heart
A silver-tone case gives the black open-heart dial a different setting.
NH38 automatic movement See product details
Skeleton-style dial
An open appearance within an angular silver-tone case.
NH38 automatic movement 41 mm
Another case shape
A square silhouette brings a different frame to visible mechanics.
NH38 automatic movement 38 mm
Closed-dial alternative
Horizontal dial texture and markers take the focus. This model is not open heart.
NH35 automatic movement See product details
Each link opens the shown configuration. Check the current price, fit and available options on the product page.
The story behind the choice
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.
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.
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.
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
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.
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.
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.
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
These are details from the individual listings. Options can differ even within the same watch family.
Hand-assembled by ModTime
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
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.
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.
The current Chocolate Open Heart listing specifies an NH38 automatic movement. Check the product page for the complete specification and available configuration.
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.
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.
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.
Explore another story, or find the full family you already have in mind.
ModTime is an independent custom watch builder. Style and movement references do not imply affiliation, authorisation or endorsement by another watch brand.