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NAUTILUS WATCH MOD ROSE GOLD CHOCOLATE OPEN HEART DIAL

Regular price $280.00 USD
Regular price Sale price $280.00 USD
SALE SOLD OUT
Shipping calculated at checkout.
LOGO
WATER RESISTANCE
  • 12 MONTH WARRANTY
  • FREE EU SHIPPING
  • HIGH QUALITY
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Technical Specifications

DIAMETER 41 mm
MOVEMENT NH38 AUTOMATIC
THICKNESS 12 mm
GLASS SAPPHIRE CRYSTAL
ANTI SCRATCH
CASE 904L STAINLESS STEEL
WATER RESISTANCE 3 ATM

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Key Features & Benefits

  • NH38 Automatic Movement
    Experience precise, reliable, and maintenance-free timekeeping – powered by your movement, no batteries needed.
  • 41 mm 904L Stainless Steel Case
    Crafted from ultra-premium 904L steel, offering exceptional durability, refined aesthetics, and a timelessly elegant presence on the wrist.
  • Sapphire Crystal Glass
    Superior scratch resistance ensures your watch stays flawless for years.
  • Open Case Back
    Admire the intricate mechanics and the artistry of hand assembly with every glance.
  • Butterfly Adjustable Bracelet
    Designed for maximum comfort and a secure fit on any wrist.
  • 3 ATM Water Resistance
    Ready for everyday challenges – rain, handwashing, and sports are no problem.
  • Modern Brushed Finish
    A sleek, contemporary look that complements both formal and casual styles.

What's Included?

Custom ModTime Watch
Your watch is assembled to order from compatible components selected for the chosen case, dial, movement and bracelet or strap configuration.

Adjustable Bracelet or Strap
Bracelet or strap fit depends on the selected product configuration. Bracelet sizing support is included when applicable.

Protective Watch Box
Each order is packed in protective packaging for safe delivery and storage.

Support After Purchase
ModTime support can help with setup questions, bracelet adjustment and order-specific details after delivery.

Why ModTime?

Independent Custom Workshop
Each ModTime watch is assembled as an independent custom build from compatible components. ModTime is not affiliated with, endorsed by, or an official service provider for any OEM or luxury watch brand.

Specs Before Claims
Movement, case size, bracelet or strap, water-resistance option and dial details are stated on each product page so the buyer can judge the build clearly.

Quality-Controlled Before Dispatch
Each watch is visually checked and function-tested before dispatch.

Direct Support
If a buyer needs help choosing a model or understanding an option, ModTime support can clarify the order before or after purchase.

Shipping Info

Each watch is hand-assembled within 4-6 days to ensure the highest quality and attention to detail.

Once completed, the shipping time is 7-12 days, depending on your location. While we aim for prompt delivery, some variations may occur based on the destination.

Please note: Due to the current global shipping conditions, especially related to parcel traffic in and out of the US, delivery times may occasionally be slightly extended. However, we do everything on our side to ensure the fastest possible handling and dispatch.

Warranty

Every ModTime timepiece is protected by a complimentary 12-month warranty, giving you complete confidence in the craftsmanship, assembly, and performance of your watch.

Our warranty covers all manufacturing and movement-related defects that may occur during normal, intended use — including issues with the movement, hands, alignment, or other internal components.

Every ModTime watch is individually hand-assembled and tested, but if you ever experience an issue, our support team will provide fast, personalized assistance and a seamless service experience.

Please note that the warranty does not cover:
• accidental damage or impacts
• water exposure beyond the rated limits
• misuse, improper handling, or unauthorized modifications

HAND-CRAFTED

Every watch we create is hand-assembled from start to finish, ensuring a level of quality, attention to detail, and character that mass-produced timepieces simply cannot match.

Our watches are crafted piece by piece — from the case and dial to the hands, crystal, and movement regulation. Each component is carefully selected and manually integrated by experienced watchmakers who control the process at every step. The result is a timepiece that feels personal, refined, and built with intention.

QUALITY-CHECKED PARTS

At ModTime, every timepiece is built using carefully selected, premium-grade components that meet the highest standards of durability, precision, and modern watchmaking.

Our watches are hand-assembled from individual components, allowing our watchmakers to inspect, adjust, and refine each element with absolute precision. This meticulous process ensures that every ModTime watch feels solid, refined, and engineered with intention.

Japanese Movements

We exclusively use Japanese Movements, known globally for their accuracy, consistency, and low-maintenance design. Depending on the model, our timepieces feature:

  • Automatic movements such as NH34, NH35, and NH38, offering smooth operation, excellent power reserve, and trusted mechanical reliability.
  • Meca-Quartz chronograph movement VK63, combining mechanical chronograph feel with quartz precision for superior everyday performance.

SAPPHIRE CRYSTAL

Our watches feature scratch-resistant sapphire crystal, trusted in fine watchmaking for its durability and clarity. It protects the dial from everyday wear while preserving a clean, refined look.

  • Highly resistant to scratches
  • Excellent transparency for clear dial visibility
  • Built for reliable, everyday use

Engineered for durability. Refined for daily wear.

WATER RESISTANT

Our watches are designed for reliable everyday wear, with two water-resistance options to match your lifestyle.

  • 3 ATM – suitable for daily use, hand washing, and protected against rain or everyday water splashes
  • 5 ATM – built for active wear, including swimming and water-based activities

Choose the level that fits your routine — from daily life to more demanding moments.

STAINLESS STEEL

Our watches are crafted from 904L stainless steel, a premium-grade alloy known for its exceptional strength, corrosion resistance, and refined finish.

  • Highly resistant to corrosion and wear
  • Smooth, polished surfaces with lasting shine
  • Chosen for durability, comfort, and a premium feel

Built to endure. Finished to impress.

BUILD STORY

A chocolate-brown dial gives this watch its colour; the open-heart window adds movement. Chocolate Open Heart combines the NH38 automatic movement with a rose-gold-tone case and an integrated bracelet. It is an independent ModTime custom build for someone who wants visible mechanics without giving up a distinct dial.

A mechanical detail you can see

The opening reveals part of the working movement from the front. The open case back provides another view from underneath. NH38 does not add a GMT display or stopwatch: this configuration is about an automatic movement and an open-heart dial.

Brown and rose-gold tones create a warmer visual combination than silver and black. Rose gold describes the finish colour here, not a case made from gold. The integrated bracelet continues the line of the case; its actual fit depends on proportions and adjustment, rather than the style name.

Specifications for this product

Element Listed specification
Movement NH38 automatic
Dial Chocolate brown, open-heart
Case 41 mm; 12 mm thickness; rose-gold tone
Crystal Sapphire
Case back Open case back
Case material Stainless steel; listed as 904L in the product specification
Bracelet Integrated with the case profile

These are the product specifications. A material designation is not a material-test certificate, and the case diameter is not a promise of fit on every wrist. Compare the dimensions with a watch you already wear, or ask about Chocolate’s fit if you need a missing measurement.

Four configurations, two separate decisions

Choose LOGO or NO LOGO for the dial presentation, then select the listed 3 ATM or 5 ATM option. The four combinations are LOGO / 3 ATM, LOGO / 5 ATM, NO LOGO / 3 ATM and NO LOGO / 5 ATM.

A mark on the dial does not make the complete watch a factory Seiko model or give it Seiko’s warranty. If component origin is a deciding factor, ask for information and available documents for the configuration you are considering. The mark itself does not replace that check.

For water exposure, follow the water-resistance and care guidance. Do not treat a higher number as automatic permission to swim or operate the crown in water.

An independent ModTime watch

You are choosing a ModTime configuration, not an official model from an outside manufacturer. Reference-style language describes the offer’s appearance; it does not imply partnership or authorisation. If you prefer another colour, return to the open-heart collection.

Before placing your order

Check the current price and availability after choosing the configuration. Read the shipping policy, returns and complaints policy and warranty and support information for the current terms.

If brown tones and visible mechanics are the combination you want, choose your configuration on this page. If you need an additional photograph or an explanation of a specification, ask ModTime about Chocolate Open Heart.

Luxury unboxed

ELEVATE YOUR EXPERIENCE

At ModTime, we believe a watch should be more than just an accessory — it should be an experience.

Every ModTime creation arrives in a handcrafted case, a reflection of our dedication to quality, precision, and timeless design.

Each order also includes a complimentary adjustment toolkit and a step-by-step guide, allowing you to tailor your bracelet for the perfect fit.

From the first moment of unboxing to the years of wear ahead, your ModTime watch is crafted to deliver lasting satisfaction and refined elegance.

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