The Orient Bambino Helios Open Heart RA-AG0026E10B is a dress automatic with a green dial and an open-heart window that shows the balance at work. At about 40.5mm it wears as a classic Bambino case size, finished on a matching stainless steel bracelet rather than leather.
Shoppers looking for an Orient Bambino open heart in Australia often want mechanical presence without a heavy sports case. This Helios reference keeps the domed mineral crystal and clean dress proportions, then adds the cut-out dial and in-house F6T22 movement with hand-winding and hacking seconds.
Why this Helios Bambino stands out
- Open-heart dial shows the balance wheel while staying wearable as a dress watch
- Green dial with silver-tone hands and markers for a clearer everyday contrast than darker faces
- Orient calibre F6T22: automatic, hand-wind, hacking, roughly 40-hour power reserve
- Stainless steel bracelet with fold-over clasp and 21mm lug width for a full steel look
- Domed mineral crystal and modest 30m water resistance suited to office and evening wear
Key specifications
- Reference: RA-AG0026E10B (Helios / Bambino Open Heart family)
- Movement: Orient calibre F6T22, automatic with hand-winding and hacking
- Power reserve: approximately 40 hours
- Case: stainless steel, about 40.5mm diameter
- Approximate thickness: about 12mm
- Approximate lug-to-lug: about 46mm
- Lug width: 21mm
- Crystal: domed mineral glass
- Water resistance: 30 metres (splash and hand washing only; not for swimming)
- Dial: green with open-heart aperture; silver-tone hands and markers
- Bracelet: stainless steel with fold-over clasp
Authentic stock, inspected before dispatch. Free shipping Australia-wide on eligible orders. Covered by Chronospride’s 12 months warranty, handled by our team. See our authenticity and warranty page.
Frequently asked questions
What is the Orient Bambino Helios Open Heart RA-AG0026E10B?
It is a Japanese automatic dress watch in the Bambino family with a green dial, open-heart display, 40.5mm steel case, and steel bracelet. The reference on this listing is RA-AG0026E10B.
What movement does the RA-AG0026E10B use?
Orient’s in-house F6T22. It winds automatically on the wrist, can be hand-wound, and the seconds hand stops when you set the time (hacking). Power reserve is about 40 hours when fully wound.
Is the open heart only decorative?
The aperture is designed so you can see the balance running. It is still a full automatic movement with hours, minutes, and seconds — not a skeletonised case throughout.
Can I swim with the Helios Bambino?
No. 30m water resistance is for accidental splashes only. Remove it before swimming, showering, or diving.
Does this model come on a leather strap or a bracelet?
This RA-AG0026E10B configuration is supplied on a stainless steel bracelet with a fold-over clasp. Lug width is 21mm if you later change the strap.
Where can I buy the Orient Bambino Helios in Australia?
Chronospride stocks this RA-AG0026E10B when available, with inspection before dispatch and Australian shipping on eligible orders.
| Brand | Orient |
|---|---|
| MPN | RA-AG0026E |
| Band-Colour | Silver |
| Band-Material | Stainless Steel |
| Case-Colour | Silver |
| Case-Material | Stainless Steel |
| Case-Size | 40.5mm |
| Duration | Approx. 40 hours |
| Face-Colour | Green |
| Gender | Men's |
| Glass | Domed Mineral |
| Movement | Automatic |
| Watch-Shape | Round |
| Water-Resistance-Rating | 30 m (3 ATM) |
| Calibre | F6T22 |
| Lug-Width | 21mm |
| Clasp | Butterfly |
| Jewels | 22 |
| EAN | 4942715013042 |
| UPC | 4942715013042 |
| Band-Width | 20mm |





















