Mod Santos Radiant Openwork / On the wrist
Mod Santos Radiant Openwork
Mod Santos
Radiant Openwork
The Custom Reimagined Santos is a fusion of heritage and modern design.
A bold yet refined statement for those who value individuality.
A tribute to creativity, craftsmanship, and timeless style.
$289.00
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
The Cartier Santos traces its origins to 1904. Its square case and exposed structural geometry helped establish a radically different silhouette from the conventional round wristwatch. The open-dial treatment shifts attention from the surface toward the movement-inspired visual depth beneath. For Radiant Openwork, 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
Silver tones frame the open dial, where darker spaces give the visible structure a clear definition. Light and shadow become the palette, allowing the architecture of the watch to take the leading role. The open-dial treatment shifts attention from the surface toward the movement-inspired visual depth beneath. In Radiant Openwork, that relationship is the center of the design.
04 / The movement
The VK63
Automatic
The NH70 is a skeletonized automatic movement running at 21,600 vibrations per hour. Its open architecture reveals more of the movement’s structure, while manual winding and hacking seconds retain the practical functions of a modern mechanical caliber.
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.
38 mmCase diameter
12 mmCase thickness
47.5 mmLug to lug
Full specifications
- Movement
- Seiko NH70 movement
- Lug width
- 20 mm
- Crystal
- Sapphire Crystal
- Strap
- Integrated Bracelet
- Strap material
- Luxurious 904L stainless steel
- Listed wrist range
- 5.71–7.8 in (Adjustable)
- Water resistance
- 5 ATM
- Crown
- Octagonal screw-down crown
- Listed weight
- 142 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
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Client care
Delivery & aftercare
Dispatch timing, shipping estimates and support after delivery.
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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 Santos Radiant Openwork / The selected design
Mod Santos
Radiant Openwork
The watch shown on this page
Mod Santos Radiant Openwork
Complete watch as shown
Watch · Quantity 1
$289.00 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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