Materials & Case Engineering
This page explains case materials, finishing, and practical water-use limits. It is written for clear understanding and realistic expectations.
Transparency principle: We disclose real materials and avoid exaggerated claims.
We do not overstate strength, coating life, or “impossible” performance.
What “Case Engineering” Means Here
Case engineering covers the case shape, surface finishing, and how parts fit together. It also includes how a watch handles daily splashes and basic wear.
Our goal is stable batches and clear material disclosure. We avoid vague material sources and low-quality substitutes.
Case Materials We Use
316L Stainless Steel
316L steel is a main case material option. It supports consistent finishing and daily wear.
904L Stainless Steel (Selected Versions)
904L steel is available on some versions. We clearly state when a model uses 904L.
Titanium Alloy
Titanium alloy is offered in certain models. We list the material clearly without overstating benefits.
Carbon Fiber & Ceramic
Carbon fiber and ceramic appear in specific lines. We keep the description factual and batch-based.
Finishing Standards on the Case
Finishing is judged by shape accuracy and surface consistency. We focus on transitions, polish, and brushed texture.
- Case shape finishing and edge transitions.
- Polished and brushed surfaces, when applicable.
- Exhibition back finishing, when applicable.
Crystal, Dial, and Visible Details
Crystal Basics
We use sapphire crystal. Scratch resistance and anti-reflective coating may apply.
Dial and External Precision
We check font placement, print thickness, and lume fill. We also assess bezel engraving depth when relevant.
Water Resistance: What to Expect
Default protection is for daily life use, like hand washing and splashes. It is not the same as official factory standards.
Recommended Limits
- Daily splash use is acceptable for most models.
- Avoid showers and steam environments.
- Avoid swimming, seawater, and saunas.
Optional service: Paid enhanced sealing test is available.
Professional pressure test results can be provided for this service.
QC and What We Share With You
QC focuses on stable function and visible build quality. Photos and videos reflect the real watch you will receive.
QC Focus Points
- Power reserve behavior and timekeeping deviation.
- Date alignment and index alignment.
- Lume check, when applicable.
- Case defects, gaps, and hand alignment.
QC Media Transparency
- We provide multi-angle real photos.
- Video may be available when feasible.
- Customer confirmation happens before shipment.
Limitations and Risk Disclosure
Mechanical watches have normal deviation ranges. Performance depends on movement structure and use habits.
Coating life depends on friction and wearing style. Lume brightness and duration can vary by batch.
How to Use This Page
Use this guide to compare materials and set daily-use expectations. If you need help, ask for clear, batch-based explanations.
