Custom Seiko Mod Black Submariner-Style 40mm Automatic Watch
$274.99
This custom Seiko mod brings together a black Submariner-style dial, black-and-white rotating bezel and stainless steel bracelet.
✓ 1-Year Limited Warranty
✓ Individually Assembled & Tested
✓ In-Stock Watches Generally Ship in 1–2 Business Days
✓ 30-Day Returns on Eligible New/Unworn Non-Custom Watches
This custom Seiko mod brings together a black Submariner-style dial, black-and-white rotating bezel and stainless steel bracelet. Its NH38 automatic movement powers a clean hours, minutes and seconds layout.
Key specifications
- Functions: Automatic H/M/S
- Movement: Japanese Seiko NH38 – Automatic – 24 Jewel
- Case: 40mm Stainless Steel 316L
- Crystal: Sapphire
- Dial: Black Submariner style
- Bezel: Black white Rotating
- Caseback: Screwdown Solid with Gaskets
- Crown: Screwdown with Gaskets
- Power Reserve: 41 Hours
- Strap: 20mm Stainless Steel bracelet
Includes a one-year limited warranty.
Explore more custom Seiko watches, or plan your own custom watch build.









Michael –
I purchased this watch and although I changed my mind after buying the watch, it was brand new and exactly as advertised. I spoke with Erik, and he told me he wanted me to be 100 percent satisfied and if I wasn’t to return the watch for a full refund. Shortly after returning the watch, I was issued a full refund. Erik did exactly what he said he would do.
I don’t think you could find a better company to do business with, plus he was almost $200. cheaper than any retailer.
If you are looking for an honest and great watch dealer this is the company to purchase from. This company, especially Erik, get a 5 out of 5 rating from me. I highly recommend Seven Watches to anyone.