Mod Seamaster VII Open-Heart / On the wrist
Mod Seamaster VII Open-Heart
Mod Seamaster
VII Open-Heart
Inspired by the legendary Seamaster ,
Known for its durability and performance beneath the waves,
This timepiece is a tribute to expert engineering.
It embodies meticulous craftsmanship and timeless passion.
$285.00
USD
From order to dispatch, about 3 days on average.*
Free U.S. standard shipping. Delivery time is additional.
Custom builds may require more preparation time.
Dispatch & delivery details ↓Complete watch · No self-assembly required
01 / The design
The design, in detail
Omega introduced the Seamaster in 1948. Over successive generations, the collection helped establish a sophisticated sporting style grounded in clear dials and maritime references. The open-dial treatment shifts attention from the surface toward the movement-inspired visual depth beneath. For VII Open-Heart, USAMODWATCH brings those historical design cues into an independently assembled custom edition.
An independent custom watch, assembled by USAMODWATCH.
02 / The color
Color, held in contrast
Dark tones meet warm dial details, while the open aperture adds a different layer of visual depth. The palette feels intimate and nostalgic against the watch’s purposeful sporting form. The open-dial treatment shifts attention from the surface toward the movement-inspired visual depth beneath. In VII Open-Heart, that relationship is the center of the design.
04 / The movement
The NH35
Automatic
The NH35 is a 24-jewel automatic movement running at 21,600 vibrations per hour. Wrist motion winds the mainspring, while manual winding and hacking seconds make setting the watch straightforward. Its mechanical architecture gives this custom build a traditional self-winding foundation.
24 jewelsMovement jewels
21,600 vphBalance frequency
AutomaticSelf-winding, no battery
Size & fit
How it fits
Compare these dimensions with a watch you already wear. Case width, thickness and lug-to-lug length each affect how it sits on your wrist.
41 mmCase diameter
13.6 mmCase thickness
49 mmLug to lug
Full specifications
- Movement
- NH35 movement
- Lug width
- 20 mm
- Crystal
- Sapphire Crystal
- Bezel
- Durable ceramic bezel
- Strap
- Mesh bracelet
- Strap material
- Mesh
- Listed wrist range
- 5.71–7.8 in (Adjustable)
- Water resistance
- 5 ATM
- Crown
- Screw-down crown
- Listed weight
- 120 g
- Hand
- C3 luminous stainless steel hands for optimal visibility in low light
Not sure about the fit? Send us your wrist measurement ↗
Customer experiences
From our customers
Verified reviews from USAMODWATCH customers
★
★
★
★
★
“Nice weight to it. Feels good on.”
Nicholas Cook
August 12, 2026
★
★
★
★
★
“You guys did a great job on this.”
Sergio Medina
August 4, 2026
★
★
★
★
★
“I wanted something a little different from what I already own, and this fits right in without looking like anything else in my collection.”
Alejandro Sanchez
July 30, 2026
★
★
★
★
★
“Great watch. All finishes are precise and it looks just as good as watches at significantly higher price points. If you care more about having a great looking watch on your arm then thousands of dollars for a name this watch is it.”
Matthieu Boucher ✓ Verified
July 6, 2026
★
★
★
★
★
“beautiful watch and very well made. Could have come with some instructions on operation.”
Joshua T. ✓ Verified
June 4, 2026
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5 reviews for Mod Seamaster VII Open-Heart
Client care
Delivery & aftercare
Dispatch timing, shipping estimates and support after delivery.
Ask us a question ↗
About our dispatch average
*Based on 517 orders dispatched during a 30-day review (Oct 17 – Nov 15, 2026), including custom builds. Average time from order placement to carrier handoff was 75 hours (3.1 calendar days). Custom preparation times are confirmed separately before ordering. This historical average does not replace the preparation estimate for your order.
When will my watch ship?
For standard watches, allow an estimated 3–5 business days for preparation. We confirm the preparation time for custom builds before ordering. These estimates are separate from the recent dispatch average shown above.
When will it arrive?
U.S. standard shipping is estimated at 3–5 business days after dispatch, in addition to preparation time. Transit can vary by destination, carrier conditions and holidays. If you need your watch for a specific date, contact us before ordering.
How does timing work for custom builds?
Preparation depends on the components and work involved. We confirm your configuration and preparation estimate before you order. Custom builds may take longer than the overall dispatch average.
What if the watch is not right for me?
Return and cancellation conditions may differ for standard watches and personalized orders. Review the current policy and confirm the terms for your configuration before ordering.
Who helps if the watch develops a fault?
The standard one-year warranty covers qualifying movement or battery faults under the full terms. Movement replacement has a $30 labor fee. Water damage, accidents, unauthorized repairs and normal wear are excluded. Contact us for instructions and costs before sending a watch for service.
Can I swim or shower with the watch?
The listed 5 ATM rating is intended for everyday splashes. Avoid swimming, showering, hot water and steam. Keep the crown secured and do not operate the controls while wet. Water damage is excluded from the warranty.
Mod Seamaster VII Open-Heart / The selected design
Mod Seamaster
VII Open-Heart
The watch shown on this page
Mod Seamaster VII Open-Heart
Complete watch as shown
Watch · Quantity 1
$285.00 USD
Shipping
Free U.S. standard shipping
Review your bag before checkout. Applicable taxes and the final total are shown before payment.
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Joshua T. (verified owner) –
beautiful watch and very well made. Could have come with some instructions on operation.
Matthieu Boucher (verified owner) –
Great watch. All finishes are precise and it looks just as good as watches at significantly higher price points. If you care more about having a great looking watch on your arm then thousands of dollars for a name this watch is it.
Alejandro Sanchez –
I wanted something a little different from what I already own, and this fits right in without looking like anything else in my collection.
Sergio Medina –
You guys did a great job on this.
Nicholas Cook –
Nice weight to it. Feels good on.