GWC Sub-Aqua – a vintage-inspired dive watch that embodies the golden age of exploration beneath the waves. With its 200m water resistance, rotating dive bezel, and stainless-steel case, it’s built to perform as a true tool watch while carrying a story of timeless character.
What sets this piece apart is its rare tropical patina dial—once deep black, now transformed into a rich, warm brown that reveals golden undertones with changing light. Paired with gilt accents and aged lume, the Sub-Aqua captures the spirit of a watch that has weathered sun, sea, and time itself.
Powered by a reliable automatic movement and protected by a sapphire crystal with date magnifier, the Sub-Aqua is equal parts rugged instrument and collector’s treasure. Whether on land or under the ocean’s surface, it delivers purpose-driven design with undeniable vintage charm.
GWC Sub-Aqua
Key Features:
Limited Lifetime Warranty - See below for details
Case Diameter – 39mm (excluding crown)
Case Thickness – 12mm
Lug to Lug – 47.5mm
Lug Width – 20mm
120 click Unidirectional dive bezel - Track your dive times accurately with this 120 click unidirectional bezel
Sapphire Crystal with Cyclops - Premium scratch resistance with magnified date window
Hand-Printed Tropical Dial - Unique patina and artisanal character evoke mid-century tool watches
Hand-Applied Lume - Individually lumed by hand for a warm, vintage glow
Seiko NH35 Automatic Movement - 41-hour power reserve, no battery required
200m / 660ft Water Resistance - Dive-ready performance for land or sea adventures
Stainless steel bracelet
Grassi Watch Company – Limited Lifetime Warranty
At Grassi Watch Company, we stand behind the quality and craftsmanship of every timepiece we create. Each watch is built to last, and we are proud to offer a Limited Lifetime Warranty to ensure your confidence in our work.
What is Covered This warranty covers the following for the lifetime of your watch:
Movement Failure due to defects in materials or workmanship.
Manufacturer Defects in the case, crystal, hands, and dial.
Any issues resulting from flaws in assembly or materials that affect the performance of the watch under normal use.
What is Not Covered This warranty does not cover damage caused by:
Water ingress due to improper crown use or exceeding stated water resistance.
Crown stripping from over-tightening, cross-threading, or misuse.
Broken date wheels or other calendar functions resulting from setting at restricted times.
Normal wear and tear (scratches, fading, strap wear, etc.).
Accidental damage, misuse, neglect, or unauthorized repairs/modifications.
While these are not covered under warranty, we are happy to offer repair services at a fair cost for such issues to keep your watch performing at its best.
How to Claim To make a warranty claim:
Contact us at grassiwatchco@gmail.com with your proof of purchase and a description of the issue.
We will provide shipping instructions for evaluation and service.
If the issue is covered, repairs will be completed at no cost to you. If the issue is outside warranty coverage, we will provide a quote before proceeding.
Limitations This warranty is valid only for the original purchaser and is non-transferable. It does not cover incidental or consequential damages.
At Grassi Watch Company, we take pride in offering unique, handcrafted watches, some of which are one-of-a-kind pieces created by our artisans and others customized to your specifications. This refund policy outlines the terms for returns and refunds for purchases made through our online store, in compliance with Florida state law.
1. Custom-Made and Artisan-Crafted Watches
Many of our watches are either custom-made to your specifications or unique, handcrafted pieces created by our artisans. Per Florida Statute 501.142, custom-made goods are exempt from mandatory refund requirements. As such, custom-made watches (built to your specifications) and unique artisan-crafted watches (one-of-a-kind pieces not made to customer specs) are final sale unless the product is defective or does not match the description provided at the time of purchase.
2. Returns for Non-Customized, Non-Unique Watches
For watches that are neither custom-made to your specifications nor one-of-a-kind artisan pieces, we offer a 14-day return period from the date of delivery, provided the following conditions are met:
The watch must be unused, in its original condition, and include all original packaging, accessories, and documentation.
Contact our customer service team at [insert contact email/phone] to initiate a return and obtain a Return Merchandise Authorization (RMA) number.
Return shipping costs are the responsibility of the customer, and we recommend insuring the package for its full value, as we are not liable for lost or damaged return shipments.
Upon receipt and inspection, we will issue a full refund to your original payment method within 7 business days or offer a store credit, at your discretion.
3. Returns for Defective or Misrepresented Products
If any watch (custom-made, artisan-crafted, or otherwise) is defective or does not conform to the description provided on our website, you may request a return within 14 days of receiving your order. To initiate a return:
Contact our customer service team at [insert contact email/phone] to notify us of the issue and obtain an RMA number.
Provide proof of purchase (e.g., order confirmation or receipt).
The watch must be in the condition received, with all original packaging, accessories, and documentation.
Return shipping costs for defective or misrepresented products will be covered by [Your Business Name].
Upon receipt and verification of the defect or misrepresentation, we will issue a full refund to your original payment method or provide a replacement, at your discretion, within 7 business days.
4. No Refunds for Change of Mind on Custom or Artisan-Crafted Watches
Due to the unique nature of our custom-made and artisan-crafted watches, we do not offer refunds, exchanges, or store credits for these items if you change your mind, unless they are defective or misrepresented.
5. Federal Protections
Under the Federal Trade Commission’s Mail, Internet, or Telephone Order Merchandise Rule, we are required to ship your order within the time frame specified at purchase. If we fail to meet this timeline, we will notify you promptly and offer the option to cancel your order for a full refund.
6. Contact Us
For questions about this policy or assistance with a return, please contact us at grassiwatchco@gmail.com. We are committed to resolving your concerns promptly and fairly.
7. Policy Disclosure
This refund policy is prominently displayed on our website and at the point of sale, as required by Florida Statute 501.142 and the Florida Deceptive and Unfair Trade Practices Act (FDUTPA). Any updates to this policy will be posted on our website and will not apply retroactively to prior purchases.
Last Updated: September 11, 2025
