The GMTEIKO Obsidian Open Heart GMT takes blackout design to a new level of sophistication. Its deep black ceramic bezel and patterned dial are elevated by the open-heart window, revealing the precision of the Seiko NH35 automatic movement beneath. The crystal case back further showcases its mechanical artistry, while sapphire glass ensures enduring clarity. Featuring luminous markers, polished indices, and a sleek silicone strap, this timepiece blends bold aesthetics with horological craftsmanship. With dual-time GMT functionality, it’s built for modern explorers who seek both style and substance in every detail.
GMTEIKO | GMT MOD Obsidian Black-Out Open Heart Edition
- Regular Price
- $329.95
- Sale Price
- $329.95
- Regular Price
- $499.95
Sold Out
- Unit Price
- per
Tax included.
Free shipping (Incl. Track & Trace).
-- people browsing right now.
Free Shipping
30-Day Returns
2-Year Warranty
Gift Included
- INFO
- SPECS
- RETURN POLICY
- 2 YEARS WARRANTY
INFO
With Luminova-coated hands and markers for excellent visibility in low light, a durable High Grade++ Silicone bracelet, and 3ATM water resistance, this watch is built for both style and performance.
Enhance your collection with the GMTEIKO MOD—a watch that merges classic design with cutting-edge functionality.
Key features
- Seiko NH35 Automatic Movement – Self-winding precision for reliable timekeeping
- 40mm 316L Stainless Steel Case & High Grade++ Silicone Bracelet – Premium quality and durability
- Sapphire Crystal & Ceramic Bezel – Scratch-resistant materials for long-term clarity
-
Dual-Time GMT Function – Track multiple time zones with ease
SPECS
| Specification | Details |
|---|---|
| Size (inches) | 40mm (excluding crown) |
| Movement | Seiko NH35 Automatic |
| Thickness | 12mm |
| Glass | Sapphire, anti-scratch, anti-reflective |
| Luminova | Yes |
| Case Material | 316L Stainless Steel |
| Crown | Screw-Down |
| Bezel | Ceramic (Black-Out" Design) |
| Wrist Size | Adjustable (14.5cm to 22cm) |
| Lug Width | 20mm |
| Bracelet | High Grade++ Silicone with 316L Stainless Steel Security Clasp |
| Case Back | Crystal (Open Back) |
| Water Resistance | 3 ATM (Splash & Rain Resistant) |
| GMT Function | Yes (Dual Time Zone) |
RETURN POLICY
Our return policy guarantees a hassle-free 30-day money-back option. If you are not fully satisfied with your purchase, you can return it within 30 days for a complete refund. Shop with confidence, knowing that your satisfaction is our top priority.
2 YEARS WARRANTY
Enjoy peace of mind with our complimentary 2-year extended warranty. Every watch is protected against manufacturing defects to ensure long-term reliability and satisfaction.
Money-Back Guarantee
& 180-Day Buyer Protection
On All Credit Card Purchases
Eric R. 
Phoenix
“Everyone keeps asking me, ‘What kind of watch is that?”
Marcus C.
San Diego
“The craftsmanship here is just next level. Every tiny detail is perfect. Love it!”
Ethan S.
Denver
“People Notice! Clean, bold, and just different enough to get a nod.”
Alex P.
Los Angeles
“You feel the mechanics working—smooth and solid. Had random people ask me about it.”
Thomas V.
Austin
“Seriously, the quality for this price? Insane! Feels way more expensive. Total steal.”
Chris K.
Dallas
“Heard good things, and Oregami delivered! This watch is solid, stylish, and awesome. Go for it!”
David P.
Miami
“Super smooth experience. The warranty sealed the deal for me—zero worries.”
Brian S.
Chicago
“Unboxing was a blast! My new watch is even cooler in person. What a treat!”
Kevin H.
Seattle
“No shipping drama—just fast delivery and pro-level packaging.”
Mark T.
New York
“Got this as a gift, and I'm obsessed! The quality and craftsmanship are truly exceptional.”
- INFO
- SPECS
- RETURN POLICY
- 2 YEARS WARRANTY
INFO
The GMTEIKO Obsidian Open Heart GMT takes blackout design to a new level of sophistication. Its deep black ceramic bezel and patterned dial are elevated by the open-heart window, revealing the precision of the Seiko NH35 automatic movement beneath. The crystal case back further showcases its mechanical artistry, while sapphire glass ensures enduring clarity. Featuring luminous markers, polished indices, and a sleek silicone strap, this timepiece blends bold aesthetics with horological craftsmanship. With dual-time GMT functionality, it’s built for modern explorers who seek both style and substance in every detail.
With Luminova-coated hands and markers for excellent visibility in low light, a durable High Grade++ Silicone bracelet, and 3ATM water resistance, this watch is built for both style and performance.
Enhance your collection with the GMTEIKO MOD—a watch that merges classic design with cutting-edge functionality.
Key features
- Seiko NH35 Automatic Movement – Self-winding precision for reliable timekeeping
- 40mm 316L Stainless Steel Case & High Grade++ Silicone Bracelet – Premium quality and durability
- Sapphire Crystal & Ceramic Bezel – Scratch-resistant materials for long-term clarity
-
Dual-Time GMT Function – Track multiple time zones with ease
SPECS
| Specification | Details |
|---|---|
| Size (inches) | 40mm (excluding crown) |
| Movement | Seiko NH35 Automatic |
| Thickness | 12mm |
| Glass | Sapphire, anti-scratch, anti-reflective |
| Luminova | Yes |
| Case Material | 316L Stainless Steel |
| Crown | Screw-Down |
| Bezel | Ceramic (Black-Out" Design) |
| Wrist Size | Adjustable (14.5cm to 22cm) |
| Lug Width | 20mm |
| Bracelet | High Grade++ Silicone with 316L Stainless Steel Security Clasp |
| Case Back | Crystal (Open Back) |
| Water Resistance | 3 ATM (Splash & Rain Resistant) |
| GMT Function | Yes (Dual Time Zone) |
RETURN POLICY
Our return policy guarantees a hassle-free 30-day money-back option. If you are not fully satisfied with your purchase, you can return it within 30 days for a complete refund. Shop with confidence, knowing that your satisfaction is our top priority.
2 YEARS WARRANTY
Enjoy peace of mind with our complimentary 2-year extended warranty. Every watch is protected against manufacturing defects to ensure long-term reliability and satisfaction.
