The Orient Star RE-AT0001L is a Contemporary open-heart automatic built for people who want mechanical interest on the dial without a huge sports case. A navy blue dial frames an open-heart window that shows the balance wheel, while a power-reserve indicator keeps the F6R42’s roughly 50-hour wind easy to read. At about 39.3 mm across and 12.2 mm thick, it sits in the everyday sweet spot for dress-casual wear in Australia.
Orient Star sits above mainline Orient: better finishing, sapphire crystal with anti-reflective treatment, and in-house movements that still hand-wind and hack. This reference (also listed as RE-AT0001L00B) is a clear entry into that tier if you want blue, bracelet, and a living movement under glass.
Why this open heart works day to day
- Open-heart aperture — see the balance wheel without a fully skeletonised dial that can look busy in formal settings.
- Calibre F6R42 — Japanese automatic, 22 jewels, hand-winding and seconds hacking, about 50 hours power reserve with an on-dial indicator.
- Wearable size — roughly 39.3 mm diameter, 12.2 mm thickness, about 46.2 mm lug-to-lug, 20 mm lugs.
- Sapphire crystal — AR-treated front crystal; steel case and bracelet for a finished, office-to-weekend look.
- 100 m water resistance — rain, hand washing and light swimming; not a dedicated dive watch.
Who it suits
Choose the RE-AT0001L if you like dress watches with a mechanical story, prefer blue over white or open silver dials, and want Orient Star finishing without stepping into larger diver proportions. It pairs well with shirts and smart casual; the bracelet keeps it self-contained for travel. Compared with mainline Orient Bambino dress pieces, you gain sapphire, a decorated higher-grade movement story, and the open-heart window.
Technical specifications
- Brand: Orient Star
- Reference: RE-AT0001L / RE-AT0001L00B
- Collection: Contemporary Semi-Skeleton / Open Heart
- Movement: Calibre F6R42, automatic, 22 jewels
- Functions: Hours, minutes, seconds, power-reserve indicator; hand-wind and hacking
- Power reserve: approx. 50 hours
- Accuracy (manufacturer): typically about +25 to −15 seconds per day
- Case: Stainless steel, approx. 39.3 mm diameter, 12.2 mm thick
- Lug-to-lug: approx. 46.2 mm
- Lug / band width: 20 mm
- Crystal: Sapphire with anti-reflective treatment
- Dial: Navy blue open heart
- Bracelet: Stainless steel
- Water resistance: 100 m (10 bar)
- Origin: Japan (Orient Star)
Frequently asked questions
What movement does the Orient Star RE-AT0001L use?
It uses Orient’s in-house automatic calibre F6R42 with 22 jewels, hand-winding, seconds hacking and roughly 50 hours of power reserve. A power-reserve indicator on the dial shows remaining wind.
What does “open heart” mean on this watch?
An opening in the dial reveals the balance wheel in motion. It is a semi-skeleton layout: you get mechanical character without a fully open dial face.
What is the case size of the RE-AT0001L?
About 39.3 mm in diameter, 12.2 mm thick and roughly 46.2 mm lug-to-lug, with 20 mm lugs. That size works for many wrists as a daily dress-casual watch.
Is the Orient Star RE-AT0001L suitable for everyday wear?
Yes for office, commuting and weekends. Sapphire helps against scratches; 100 m water resistance covers rain and light swimming. Avoid heavy impact sports and diving.
How does Orient Star compare to regular Orient?
Orient Star is the premium line: typically stronger finishing, sapphire crystal and higher-spec in-house movements. Mainline Orient (for example Bambino) remains excellent value; Star is the step up when you want more refinement on the wrist.
Where can I buy the Orient Star RE-AT0001L in Australia?
This piece is listed at Chronospride with Australian dispatch on eligible orders. Stock is inspected before dispatch. Check the product page for live availability and shipping options.
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.
| Brand | Orient |
|---|---|
| Case-Size | 39.3mm |
| Band-Width | 20mm |
| Lug-Width | 20mm |
| Lug to lug size | 46.2mm |
| Case Thickness | 12.2mm |
| UPC | 4942715014230 |
| GTIN | 4942715014230 |
| EAN | 4942715014230 |











