






4300V/220G-H151 41.5 mm
Ethos Perpetual Calendar Ultra-Thin Automatic
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Materials & Care
Our watches are made with precision and attention to detail. This model has an ultra-thin design and a refined finish for durability and style. To keep your watch looking great:
- Avoid moisture, chemicals, and perfumes.
- Clean gently with a soft cloth.
- Store it in its case or a watch box away from sunlight.
With proper care, your watch will last and look good for years.
Service & Warranty
Your watch is backed by a 24-month international warranty, reflecting our commitment to quality and precision. This warranty covers manufacturing defects in the movement, case, and finish to ensure reliable performance.
All repairs and warranty claims are handled by our authorized service network, where certified watchmakers use genuine parts to maintain your watch’s quality.
For returns or warranty service, please reach out to us at support@ethoswatch.store. Our support team is available Saturday to Sunday, 9:30 AM – 7:00 PM and ready to assist you.
Certifications & Authenticity
Authenticity is the foundation of trust. Each of our watches is backed by globally recognized certifications and partnerships, including the Butterfly Mark, UN Global Compact, Science Based Targets, BSR, and Women’s Empowerment Principles. These certifications ensure:
- Verified authenticity and quality.
- Ethical and responsible sourcing.
- Commitment to sustainability in watchmaking.
Our partnerships and certifications give you the confidence that every timepiece you wear is genuine, responsibly sourced, and held to the highest standards.
Shipping & Returns
We offer complimentary express shipping on all orders. Your watch will be prepared and shipped within 2 business days. Delivery typically arrives within 4–6 business days, depending on your location.
For returns, enjoy 28 days free returns with no restocking fee. Simply contact our support team at support@ethoswatch.store, and we’ll provide you with a pre-paid return label for a smooth and easy process.
A seamless blend of modern design and enduring innovation, the Ethos Perpetual Ultra-Thin is crafted for those who value elegance and precision. This timepiece combines a sleek, sport-inspired silhouette with an advanced calendar complication, all within an impressively slim 8.1 mm profile.
Built for daily wear, the watch features a perpetual-style calendar that tracks day, date, month, and moon phase with reliable accuracy and minimal adjustments required over time. The deep sunburst satin-finished dial captures light beautifully, accented by luminous hands and markers that ensure clear legibility in any environment. A delicate moon phase indicator enriches the dial with a subtle celestial motif.
Encased in polished stainless steel, the watch reveals its finely engineered movement through a transparent mineral glass caseback. Designed to withstand everyday conditions, it offers 50 meters water resistance and magnetic shielding for enhanced durability. The bracelet incorporates a unique hidden cross-link design, marrying form and function effortlessly.
For versatility, the Ethos Perpetual Ultra-Thin comes with three interchangeable straps — red rubber, white rubber, and a stainless steel bracelet — all featuring a convenient quick-swap system for easy personalization.
Specifications
Feature | Details |
---|---|
Case Diameter | 41.5 mm |
Thickness | 8.1 mm |
Case Material | Polished Stainless Steel |
Dial | Sunburst satin-finished base with velvet-finished minute track |
Hands & Markers | Metallic finish with blue luminous coating |
Calendar Functions | Day / Date / Month / Moon Phase |
Movement | Precision Quartz (perpetual-style complication) |
Water Resistance | 5 ATM (50 meters) |
Magnetic Shielding | Yes |
Straps Included | 3 (Red Rubber, White Rubber, Stainless Steel Bracelet) |
Bracelet Interchange | Yes – Quick-swap system |
Buckle Type | Ardillon Buckle |
Buckle Material | Stainless Steel |
Case Back | Transparent mineral glass |
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Your Choice, Your Style
Compare finishes side by side and find the look that reflects your style.

Royal
Burgundy
Champagne
Sunburst satinPremium Look
Reliable Performance
24 Months Warranty
28 Days Free Returns
"Wearing this watch for just a few hours really illustrates why it was, and is, so popular."



