OLEVS 3640 – Men's Open-Heart Moon Phase Quartz Watch — Velant Watch product guide
Selected for the Velant Watch catalog, this page brings together the model details shoppers need before choosing a variant. Key catalog details for this model include silver; black, stainless-steel, white; gray; black, analog, waterproof; quartz-movement; luminous-hands. Confirm the selected color, size, movement, price, and availability shown on this page before ordering.
Dynamic Aesthetics, Unwavering Precision
Command attention with a timepiece that masterfully blends traditional horological artistry with modern reliability. The OLEVS 3640 is meticulously crafted for the gentleman who appreciates complex mechanical aesthetics but demands the effortless precision of a quartz engine. Showcasing a captivating open-heart window at the 6 o'clock position that mimics a rhythmic tourbillon, paired with a classic sun/moon phase indicator and functional chronograph sub-dials, this watch delivers a profoundly luxurious visual impact. Whether dominating a boardroom or attending an upscale evening gala, it serves as a sophisticated anchor to your executive wardrobe.










Heavy-Duty Build with Executive Comfort
Beneath its highly intricate dial lies a foundation built for relentless everyday performance. Driven by a premium original quartz movement, the OLEVS 3640 guarantees exceptional timekeeping accuracy with virtually zero daily maintenance. The perfectly proportioned 41mm case sits with a sleek 11mm profile, seamlessly pairing with a robust, textured steel bracelet that delivers a commanding 120g luxury weight. Protected by a high-hardness coated mirror and featuring high-definition luminous hands, this watch ensures lasting brilliance, durability, and effortless readability day or night.
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Open-Heart Moon Phase Dial: A visually striking face featuring a dynamic rotating bottom window, classic Roman numerals, and a functional day/night moon phase indicator.
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Original Quartz Movement: A high-precision engine ensuring you remain flawlessly punctual, combining high-end mechanical aesthetics with the convenience of battery power.
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Textured Steel Bracelet: A polished, 20mm wide stainless steel band offering exceptional durability, sweat resistance, and a heavy-duty 120g executive fit.
How do I activate the battery for the quartz movement upon delivery?
To preserve battery life during global shipping and storage, your watch arrives safely deactivated. To activate the high-precision quartz movement, simply locate and carefully remove the small plastic side stopper situated directly behind the main crown. It is essential to remove this side stopper rather than attempting to pull the entire crown out. Once the stopper is removed, push the crown fully inward against the case to engage the battery and begin accurate timekeeping.
Is the 120g textured bracelet comfortable for daily office wear?
Absolutely. The watch is masterfully engineered for balanced ergonomics. The 120g weight provides that highly sought-after premium luxury presence without causing wrist fatigue during long hours at the desk. The 20mm wide textured steel chain features expertly polished links that prevent pinching, offering a highly secure, breathable, and skin-friendly fit designed specifically for continuous wear.
What does the 30M waterproof rating cover in everyday life?
The 30-meter (30m) water resistance is expertly designed for practical, everyday protection. It effectively seals the internal quartz mechanism against accidental splashes, routine hand washing, and light rain. However, to preserve the structural integrity of the high-hardness coated mirror and prevent internal condensation within the complex sub-dials, the watch must never be exposed to hot showers, steam, swimming, or full submersion.
| Model Number |
OLEVS / 3640 |
| Movement |
Quartz Movement |
| Case Diameter |
41mm |
| Dial Thickness |
11mm |
| Mirror Material |
High Hardness Coated Mirror |
| Strap Material |
Textured Bracelet (Steel) |
| Strap Width |
20mm |
| Strap Length |
21cm |
| Waterproofing |
30 Metres (3ATM) |
| Weights |
120g |