Somerville Watch Co.
Somerville Watch Co. "Back Bay" Dive Watch
Somerville Watch Co. "Back Bay" Dive Watch
ONE YEAR WARRANTY
- SHIPS WITHIN 48 HOURS
- FREE WORLDWIDE 2-5 DAY DELIVERY
In stock
Couldn't load pickup availability
Introducing the Somerville Watch Co. "Back Bay" Dive Watch, designed for the modern man who values both style and rugged functionality.
This watch was designed from the ground up by the team here at SWC, and we are proud to finally bring it to our customers for the 2025 holiday season.
Named for the beautiful Back Bay neighborhood in Somerville's neighboring town, Boston, MA (maybe you've heard of it?), this watch features a stunning enamel dial with (in our opinion) perfectly proportioned dial text and graphics.
Be one of the lucky few to get this limited, first-edition run of the SWC Back Bay.
Case Measurements:
- Size: 40mm
- Thickness: 12mm
- Lug-to-lug: 47mm
- Lug width: 20mm
Key Features:
- Case Material: Polished 904L stainless steel, Submariner inspired case with screw-down crown.
- Bracelet: 904L stainless steel Oyster bracelet with secure-fit, double-locking clasp and glide-lock functionality.
- Dial: Premium, glossy enamel dial "Back Bay" dial with luminescent, hand-applied indices.
-
Water resistance: 100m/330ft of water resistance. Individually tested to a minimum of 6 bars during our QC process. We do not recommend swimming or showering with this watch, and do not warranty against water damage.
- Scratch-resistant Sapphire Crystal
- Scratch-resistant Ceramic Bezel
- Japanese-engineered NH35 Automatic Mechanical Movement
Manufactured with precision and care by Somerville Watch Co.

Frequently Asked Questions
Do your watches have a logo?
Our watches have a full logo.
What is a Mod?
A Mod is a custom, modified watch. Each watch is hand assembled by us.
Our watches begin with a genuine, Japanese movement. We take this movement, and complement it with our own custom-produced dials, hands, cases, and bracelets. The specific movement used is listed in the description for each of our products.
Somerville Watch Co. is not affiliated with any other company. We are an independent watchmaker, and each watch we sell includes a 1-year in-house warranty. Since these watches are custom-made by our company, they will not include a box and papers.
Why do you choose to use custom-produced parts?
The answer is simple: because there is simply no way to deliver the premium aesthetics and functionality that we strive for when using fully stock watches as a base for our mods.
If you have any doubts about our products whatsoever, reach out to us via our email, or visit our Customer Reviews page to see what 230+ happy customers have had to say about our watches.
Will I have to pay any new tariffs on my U.S. order?
Unlike our competitors, we do not dropship our watches from overseas. What sets us apart is that we are a wholly U.S. owned and operated company.
If you are an American customer, that means your order will ship from Somerville, Massachusetts, and you will never have to pay any import duties or tariffs.
Where are you located?
As our name implies, we are located in Somerville, Massuchussets, USA. You can read more about our company and its founding on our About Us page.
Do you have a physical location/boutique?
We are an e-commerce only business, with no plans for opening a physical location.
For logistical reasons, we are unable to offer local pick-up from our workshop. We do however offer free shipping to all customers, regardless of their location.
Do you offer a warranty?
All of our watches are covered by a 1 year warranty for issues related to the movement or craftsmanship. If you experience issues with your watch, we will happily repair the watch free of charge.
If you are outside of the warranty period, we are still available to help you diagnose and repair any issues you may have. Just reach out to us via email!
How quickly do your watches ship?
All of our watches are in-stock, pre-built and available to ship immediately unless marked as "Pre Order."
Watches ordered before 12pm EST typically ship the following day, except when USPS is closed (Sunday and US federal holidays) or during severe weather.
What are your shipping speeds and prices?
For the most accurate delivery estimates and pricing, add an item to your cart and enter your mailing address at checkout. The checkout page will then populate with real-time pricing and delivery estimates provided by our delivery partners: USPS, UPS, and DHL.
Shipments within the U.S. are FREE and arrive within 2-5 business days, depending on your location. U.S. customers can also opt for expedited paid shipping.
For international orders, we offer FREE expedited shipping to over 100 countries through FedEx and UPS. Both of these services deliver worldwide within 2-5 business days.
Do you create custom builds?
Yes we do. Please fill out a custom-build request form at this link!.
Is my payment information secure?
Our website and payments platform is powered by Shopify, which complies with all six PCI standard categories, making it among the most secure payment platforms on the web.
What is the difference between the Premium Dial and Standard Dial GMT and Submariner watches?
Despite the name difference, both of our GMT and Submariner dial options are premium and have identical quality in terms of finishing, lume, and cost. Both dials are constructed of the same high-quality copper.
The only difference is in the face of the dial itself. The Premium option includes a printed logo, and is designed as an homage to the GMT-Master and Submariner dials. The Standard dial is more understated and minimalist in terms of the amount of text on the face, and includes a metal logo instead of a printed logo.
The Standard dial the only option we carried when our website launched. When we began offering the Premium dial, that moniker was chosen simply as a way to differentiate the watch.
Let customers speak for us
from 266 reviews
This is exactly what I was looking for. Perfect Santos mod. I love it!
I recently purchased a made-to-order watch, and I can't help but sing its praises! From the moment I placed my order, the owner was incredibly responsive, ensuring that every detail was tailored to my preferences.
When the watch arrived, I was absolutely thrilled with the end result. It perfectly matched my vision, showcasing the craftsmanship and attention to detail that a small business can offer. The design felt unique and personal, making it even more special.
However, on the first day of wearing it, a small piece broke. I reached out to the owner, and to my delight, they promptly sent a replacement part along with the necessary tools to fix it. This level of customer service truly impressed me and reflected their commitment to their customers.
Overall, I loved my experience with this watch and the personal touch that comes from supporting a small business. The combination of a beautiful product and exceptional customer support makes this purchase one I would highly recommend to anyone looking for a unique timepiece.
Really impressed with the quality and overall fit and finish. I've gotten a lot of compliments on it. I will definitely be purchasing others.
Ordered the Daytona Mod “Le Mans” Chronograph watch from SWC and couldn’t be happier. The color combo is great and the small details make all the difference. I get so many compliments when wearing this.
I love this watch. Looks and feels like a high quality Omega Speedmaster but out does the Speedmaster (in my opinion) because it is reasonably priced and has a battery operated movement. Saves me the time and need for manual winding and/or daily wear. As the owner of several watches that I rotate through each day, the conveince of battery operation (although not cool for high end watches) is perfect for practical applications.
I love this watch!
I really love this option. It’s probably the most comfortable out of any bracelet/strap. I have it on my panda Daytona and it really makes the Dial Pop 10 out of 10 would recommend.
I’m truly blown away about the quality of this watch the look the feel the way it wears and everything about it. 100% worth every penny.
Absolutely fantastic work from Somerville Watch Company! The attention to detail is honestly incredible, and the watch was actually of a higher quality than I was expecting for the price. In a sea of sketchy SeikoMod sites, ordering from here is absolutely your safest bet! I will definitely be ordering more in the future!
Note: Strap in photo is an aftermarket strap. The bracelet it came with was a really good quality (which is shockingly rare with a lot of these SeikoMod sites), but this is just what I happened to have it on when doing my review!
I have to be honest, this watch for the cost is absolutely top tier quality in my opinion. The automatic movement system is fantastic, the dive dial on it is crisp and consistent, and the band/style is convincing to lend one to believe you may ACTUALLY be an MI6 member… The watch also has a glass back to see the movement mechanism which I believe is a beautiful and unique addition even the original NTTD watch does not have. The only complaint I have is I have to buy the NATO band separate (this really is not a complaint at all, I just know that I’ll need it also.)
If you are on the fence for this or any other Somerville Watch I would personally encourage you to go for it, I promise you will NOT regret it!
Watch is exactly as advertised, well, actually better due to the fact they didn’t have the dial I’d ordered available so they shipped me a premium dial at no extra cost. Highly recommend this store!
Quality is stellar and looks amazing. Very happy with my purchase!
Exceeded my expectations. This is a well built, substantial watch that I am as happy to wear as almost any watch in my collection.
Love my new Seiko Pepsi GMT watch! Looks and fits great!
10/10 would recommend to everyone. Such a great piece and very well crafted and put together.