ONOLA ON3870 Automatic Mechanical Watch for Men, Skeleton Dial, Silicone Strap, 30M Water Resistant
- Automatic mechanical movement winds with wrist motion, no battery to replace
- Skeleton dial shows the running movement through mineral glass
- 30M water resistance rated for rain and splashes, not swimming
- Silicone strap and stainless steel pin buckle resist sweat and daily wear
- Free Shipping Over $69
- Secure Checkout
- 30-Day Money-Back Guarantee
- 1-Year Warranty
For men who want a mechanical watch that reads as sporty rather than dressy, the ONOLA ON3870 pairs an open-worked dial with a barrel-shaped case and a soft silicone strap. It suits everyday wear, the gym, and weekends outdoors, where a battery-powered watch would need replacing and a leather strap would soak through.
Automatic movement
The watch runs on a mechanical movement that winds itself as the wrist moves. There is no battery to change, and the skeleton dial lets the mechanism stay visible through the mineral glass. When worn daily, the motion of the arm keeps it running; if it is left off the wrist for long, it can be wound by hand through the crown.
Built for active wear
The 53mm alloy case is 15mm thick, giving the watch a substantial presence on the wrist. The silicone strap stays flexible through sweat and water, and the stainless steel pin buckle holds it securely. With 30M water resistance, the watch handles rain, hand washing, and splashes without issue.
Finish and colour options
Seven colourways are available: Black, Black-Orange, Silver-Red, Silver-Blue, Rose-White, Rose-Black, and Silver-White. The barrel-shaped dial, onion crown, and mineral glass are assembled as one unit. Each watch is inspected before dispatch, and the full specification is listed below.
| Brand | ONOLA |
|---|---|
| Model | ON3870 |
| Movement | Mechanical, automatic |
| Movement origin | China |
| Case material | Alloy |
| Case shape | Barrel |
| Case diameter | 53mm |
| Case thickness | 15mm |
| Crystal | Mineral reinforced glass |
| Crown type | Onion crown |
| Case back | Standard |
| Strap material | Silicone |
| Clasp | Pin buckle, stainless steel |
| Water resistance | 30M |
| Display | Analog |
| Target audience | Men |
| Style | Sport |
| Colours | Black, Black-Orange, Silver-Red, Silver-Blue, Rose-White, Rose-Black, Silver-White |
| Weight | 130g |
| Place of origin | Guangdong, China |
| After-sales service | Store warranty |
Shipping
Processing time: Orders are prepared within 2–5 business days.
Shipping time: 7–14 business days for most destinations, depending on your location.
Shipping rates: Free shipping on orders over $69. Standard shipping from $7.99. Final rates are shown at checkout.
Tracking: All packages include tracking. We email the tracking number after dispatch.
Customs: Import duties and taxes are the customer's responsibility.
Returns
30-day returns: You have 30 days from the original ship date to return your item.
Condition: Items must be unused, unworn, and in the original packaging.
Refunds: Refunds are processed within 5–10 business days after we receive the return.
Questions? Email support@fantastreet.com.
Frequently Asked Questions
Q1. Can this watch be worn while swimming?
A: No. It is rated 30M, which covers rain and splashes but not swimming or diving.
Q2. How is the watch powered, and does it need a battery?
A: It uses an automatic mechanical movement that winds from wrist motion. There is no battery to replace.
Q3. Will a 53mm case fit a smaller wrist?
A: The case is 53mm wide and 15mm thick, so it wears large. It is best suited to wrists that can carry an oversized sports watch.
Q4. What is the strap made of, and can it get wet?
A: The strap is silicone with a stainless steel pin buckle. Silicone handles sweat and splashes well.
Q5. What is included with the watch?
A: The watch is supplied with its silicone strap and stainless steel pin buckle. The package weight is 130g.
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