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HKM-685139 Twosome Automatic Moon Phase Tourbillon Men's Watch, 41mm Titanium Waterproof
HKM-685139 Twosome Automatic Moon Phase Tourbillon
Where mechanical artistry meets astronomical precision. This timepiece integrates a mesmerizing tourbillon and an elegant moon phase display within a lightweight titanium case — engineered for the modern connoisseur who values both haute horology and everyday wearability.
Tourbillon Escapement
Rotating cage counteracts gravitational errors for superior chronometric stability.
Moon Phase Indicator
Tracks the lunar cycle with a beautifully detailed disc display.
Titanium Case
Ultra-light yet remarkably strong, 41 mm diameter for a bold wrist presence.
Exhibition Caseback
Transparent sapphire back reveals the intricate automatic movement.
30M Water Resistance
Resists splashes and brief immersion, built for daily confidence.
Automatic Movement
Self-winding caliber with reliable Taiwanese craftsmanship.
Refined Engineering, Uncompromising Detail
Tourbillon: The Heart of Precision
The tourbillon carriage rotates continuously to average out positional errors caused by gravity. Mounted within a lightweight titanium cage, this mechanism delivers a captivating visual ballet while improving rate stability. The intricate finishing on the bridge and escapement reflects the dedication invested in this movement.
Moon Phase: A Celestial Companion
At a glance, observe the current phase of the moon with a dedicated sub-dial. The polished disc, decorated with stars and a golden moon, advances discreetly every 24 hours. Accurate to within one day every 122 years, this complication marries romanticism with mechanical rigor, providing a functional and poetic addition to the dial.
Titanium Case: Strength Without Weight
Crafted from Grade 5 titanium, the 41 mm (1.61 in) case offers exceptional corrosion resistance and a featherlight feel on the wrist. At just 11 mm (0.43 in) thick, it slips comfortably under a cuff. The subtle brushed and polished surfaces reflect light with refined sophistication, while the hypoallergenic properties of titanium make it suitable for sensitive skin.
Exhibition Caseback: A Window to the Movement
The transparent caseback, fitted with a hardened mineral crystal, offers an unobstructed view of the automatic winding rotor, blued screws, and perlage finishing. Observing the tourbillon in motion from the reverse side becomes a private pleasure each time you take the watch off.
Water Resistance & Daily Durability
Rated at 30 meters (98 feet), the watch withstands accidental splashes, rain, and brief immersion. The screw-down crown and gasketed case construction ensure reliable protection. While not designed for swimming or diving, it handles the rigors of daily life with quiet resilience.
Bracelet & Clasp: Secure Comfort
A robust stainless steel bracelet (Seiko-sourced) integrates seamlessly with the titanium case, offering durability and a classic aesthetic. The folding buckle clasp with safety lock ensures the watch stays firmly in place, while the micro-adjustment feature allows a tailored fit for wrists of various sizes.
Technical Specifications
Why the HKM-685139 Stands Apart
Frequently Asked Questions
How do I set the moon phase correctly?
Is the tourbillon visible during normal wear?
Can I swim or shower with this watch?
What type of movement does it use?
How should I care for the titanium case?
Purchase with Confidence
Free Shipping on All Orders
Enjoy complimentary standard delivery on every purchase, with secure packaging and tracking.
180 Days Purchase Protection
Your order is safeguarded against defects and shipping damage for a full six months.
30-Day Money-Back Guarantee
Not completely satisfied? Return the watch in original condition within 30 days for a full refund.
24 Months Warranty Service
Comprehensive coverage against manufacturing defects, with dedicated support for two years.
HKM-685139 Twosome Automatic Moon Phase Tourbillon — A fusion of precision engineering and timeless design.
Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.
The protection plan is designed to provide practical help in real-world situations. Whether you encounter a manufacturing issue, a performance problem, or an unexpected accident, our team is ready to assist with clear, fair solutions.
What Is Covered
Manufacturing Defects
We replace items with material or workmanship flaws at no charge.
Performance Failures
Free repair or replacement if the product fails under normal use.
Accidental Damage
One-time courtesy replacement at a reduced price.
Zero Hidden Fees
All shipping costs for replacements and returns are covered.
How to File a Claim
How This Differs from the Warranty
The 180-day purchase protection includes accidental damage and performance failures that are typically not covered by a standard warranty. It provides an additional layer of support during the first six months after purchase, giving you greater confidence and peace of mind.
We want you to be completely satisfied with your purchase. If for any reason you are not fully happy, you may return your item within 30 days of delivery for a full refund. No lengthy forms, no unnecessary questions.
Our return policy is built on a simple principle: if the product is not right for you, we will make it right. We understand that online shopping involves trust, and we work hard to earn that trust with every order.
Return Eligibility
30-Day Window
Request a return within 30 days of delivery.
Original Condition
Unworn or unused, with tags and original packaging.
Proof of Purchase
A receipt or order number is required.
Fast Refund
Refund processed within 10 business days.
How to Start a Return
Returns & Exchanges Overview
Damages & Exchanges
Please inspect your order as soon as it arrives. If the item is defective, damaged, or incorrect, contact us immediately so we can evaluate the issue and make it right. For exchanges, the fastest option is to return the original item and place a new order for the replacement.
We believe in the quality of our products, and we want you to share that confidence. Every product is backed by a 24-month warranty covering all structural and functional components, including zippers, buckles, straps, and fabric integrity.
The warranty is designed to be simple and accessible. You only need your proof of purchase to begin a claim, and our team will assess the issue promptly. If a manufacturing issue arises, we will make it right.
What the Warranty Covers
Comprehensive Coverage
Every part warranted for two full years.
Free Repair or Replacement
Whichever is faster, at no cost to you.
Quick Turnaround
Claims assessed within 1 business day.
Transferable
Warranty follows the product, not the owner.
How to File a Warranty Claim
Every order ships free—no minimums, no hidden fees. We currently deliver across the United States and are actively working to expand to more countries. We partner with reliable U.S. courier services to ensure your order arrives safely and on time.
Our delivery process is designed for transparency. From the moment you place your order to the moment it reaches your door, you receive clear updates at every stage. We carefully inspect each product before dispatch, and we provide tracking information as soon as your order ships.
Our U.S. Shipping Partners
USPS
Official national carrier with nationwide coverage.
UPS
Fast and reliable ground and express shipping.
FedEx
Express delivery with real-time tracking.
DHL eCommerce
Efficient parcel delivery for e-commerce shipments.
Delivery Process
Delivery Time Summary
Cancellations & Taxes
You may cancel your order at any time before it ships. All product prices include applicable taxes, and there are no additional VAT or customs fees for orders delivered within the United States.
Whether you have a question, need help with an order, or just want some advice, our support team is available around the clock. We don't just respond to messages—we work with you to find real solutions that fit your needs.
Our support specialists are trained to handle a wide range of requests, from product recommendations to technical troubleshooting. No matter the question, you can expect a professional and friendly response.
How We Can Help
Product Guidance
Our experts help you choose the right product.
Order Assistance
Modify orders, track shipments, or speed up delivery.
Warranty & Returns
Start claims or returns quickly and easily.
Technical Troubleshooting
Step-by-step solutions for product issues.
Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
Support Hours
Available 24 hours a day, 7 days a week