Mod Seamaster VII Open-Heart

$280.00

Welcome Offer / Limited Workshop Event

Buy 1 Get $5 Off | Buy 2 Get $50 Off

*Valid on your first order. Applied automatically at checkout.

🇺🇸
USA Built Hand-assembled in our US workshop
🇯🇵
Japan SEIKO Powered by NH Series Caliber
🏁
MOD CULTURE Endless DIY parts to swap & style
Order Placed Aug 5
Build & Hand-Tested Aug 10 – Aug 12
Estimated Delivery Aug 14 – Aug 19
Free shipping for all watches
Hassle-free 7-day return
Backed by a 1-year warranty
U.S. Assembled

Product details

· Case Diameter: 41mm  

· Case Thickness: 13.6mm

· Bracelet: Mesh bracelet

· Bracelet Material: Mesh

· Bezel: Durable ceramic bezel  

· Lug To Lug Height: 49mm

. Wrist Size: 5.71 inch - 7.8 inch (Adjustable)

· Lug Width: 20mm

· Glass: Sapphire Crystal

· Movement: NH35 movement

· Water Resistance: 5 ATM

· Crown: Screw-down crown

· Hand: C3 luminous stainless steel hands for optimal visibility in low light 

. Weight: 120g

FROM OUR HANDS TO YOUR WRIST

Every timepiece is assembled by hand in our U.S. studio.

BUILT FOR PRECISION. NH39 POWERED.

The Seiko NH39 delivers dependable mechanical timekeeping with a clean no-date design.

Its automatic winding system keeps the watch running through natural wrist motion.

Manual winding support allows quick and easy starts when needed.

Precise time-setting helps align the seconds hand accurately.

A reliable movement known for its balanced design and everyday durability.
Movement detail
Precision detail

PRECISION IN EVERY DETAIL

41mm case with a bold, balanced profile.
Scratch-resistant sapphire crystal for lasting clarity.
Durable ceramic bezel with a refined finish.
Powered by the reliable Seiko NH35 automatic movement.
Built for everyday wear with timeless design.

THE PEOPLE BEHIND THE CRAFT

Expertly assembled by skilled watchmakers.

Behind every USAMODWATCH timepiece is a small team of watchmakers who take pride in what they do.

Each one brings steady hands, sharp focus, and years of experience to the bench — turning raw components into precise, living mechanisms.

We build, test, and assemble every piece by hand. Driven by a shared belief that true quality can't be rushed or automated.

Our mission is simple: To keep the spirit of craftsmanship alive, creating watches that connect people not only to time, but to the hands that made it.

Learn More
People Behind Your Watch

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