The Orient RA-AR0004S is a white-dial open-heart automatic for someone who wants to see the balance without buying a full skeleton. The aperture sits at 9 o’clock. A small seconds subdial sits at 6. There is no date window.
Orient catalogues this reference as the Stretto Semi Skeleton, launched in February 2018. The store SKU is RA-AR0004S. A collage in the gallery is labelled with the export code RA-AR0004S10B. That label is the same family, not a second watch in the box.
Dial and strap
The dial is white, with applied silver indices and silver hands. Orient and Automatic sit under the crest at 12. The open heart shows the balance at 9, overlapping the small seconds register. The strap in the dial photos is black crocodile-pattern leather. The collage shows a pin buckle and a light-coloured lining. The maker’s sheet lists luminous hands and markers. A separate dark frame in the gallery shows glowing hands and indices, but the file is named for the navy sibling RA-AR0003L, so it is not used here as proof of this dial colour.
The front photos show an older movement-origin line on the dial and a movement code in the F6S2 family. Catalogue photos can carry an earlier stamp. The origin note below is the line that applies to the watch we send.
Case and movement
Calibre F6S22 is an automatic with hand-winding and hacking. Orient’s specification table lists 22 jewels and over 40 hours of power reserve. Some retailer sheets say 24 jewels. The count used here is 22, which matches the maker’s table and the jewel attribute already on this page.
The case is stainless steel with a sapphire crystal and a screw-down exhibition case back. Orient lists the case as 40.8 mm wide and 48 mm from lug to lug, with a 22 mm leather strap. This listing shows the case size as 41 mm and the thickness as 11 mm. The maker’s table leaves thickness blank, so 11 mm stays the listing figure and is not rewritten from a single retailer sheet. Water resistance is 50 metres. The crown is push-pull. There is no date.
Specifications
- Brand: Orient, a Japanese brand
- Collection: Stretto Semi Skeleton / open heart
- Reference: RA-AR0004S (gallery collage also shows export code RA-AR0004S10B)
- Movement: Orient calibre F6S22, automatic, hand-winding, hacking seconds
- Jewels: 22
- Power reserve: over 40 hours
- Dial: white, open heart at 9, small seconds at 6, no date
- Hands and markers: silver, luminous on the maker’s sheet
- Crystal: sapphire
- Case: stainless steel, 40.8 mm wide on the maker’s sheet (listed here as 41 mm), 48 mm lug-to-lug, about 11 mm thick on this listing
- Case back: screw-down, exhibition
- Crown: push-pull
- Water resistance: 50 metres / 5 bar
- Strap: black leather, 22 mm, pin buckle in the gallery collage
Listing photos may show an earlier example marked Movement Japan or Made in Japan. The watch we send is current production and is marked Made in Thailand.
This is not a Bambino. The Bambino open heart RA-AG0002S10B is a 40.5 mm dress watch on calibre F6T22, with 30 metres of water resistance and no small-seconds subdial. More Orient dress watches are in the Orient Classic collection.
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.
Common questions
What movement does the Orient RA-AR0004S use?
Orient calibre F6S22. It is an automatic with hand-winding and hacking, 22 jewels on the maker’s sheet, and over 40 hours of power reserve. The exhibition case back shows the movement. A retailer sheet that lists 24 jewels is not used here.
Does the RA-AR0004S have a date?
No. The complications are an open heart at 9 o’clock and a small seconds subdial at 6. There is no date window and no day disc. If you need a date on a similar Orient dress watch, this is the wrong reference.
What size is the RA-AR0004S?
Orient lists 40.8 mm across and 48 mm from lug to lug, with a 22 mm strap. This page already lists the case as 41 mm and the thickness as 11 mm. The maker’s table does not give a thickness, so those listing figures are left as they are. It wears as a straightforward dress watch, not as a diver.
What is the water resistance of the RA-AR0004S?
50 metres, or 5 bar. That is enough for rain and hand washing. The crown is push-pull, not screw-down. It is not a swim watch and not a dive watch.
Is the RA-AR0004S suitable for everyday wear?
Yes, as a dress or office watch. The sapphire crystal and 50 metre rating are the practical points. The black leather strap is the part that will age first in summer humidity. The open heart is a look, not a tool feature. Readability in the dark depends on the luminous hands and markers the maker lists, not on a high-contrast sports dial.
How is this different from a Bambino open heart?
The Bambino open heart RA-AG0002S10B is 40.5 mm, calibre F6T22, 30 metres, and has no small-seconds subdial. The RA-AR0004S is the Stretto semi-skeleton: about 40.8 mm, calibre F6S22, 50 metres, open heart at 9, and small seconds at 6. They are not strap-compatible by nickname, and the water resistance is not the same.
Where can I buy the Orient RA-AR0004S in Australia?
Chronospride has this reference in stock in Australia. It is inspected before dispatch, with 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 |
|---|---|
| MPN | RA-AR0004S |
| Gender | Men's |
| Band-Material | Leather |
| Case-Material | Stainless Steel |
| Movement | Automatic |
| Case-Size | 41mm |
| Band-Width | 22mm |
| Band-Colour | Black |
| UPC | 4942715013585 |
| EAN | 4942715013585 |
| Calibre | F6S22 |
| Case-Colour | Silver |
| Face-Colour | White |
| Jewels | 22 |
| Power reserve | 40 hours |
| Watch-Shape | Round |
| Water-Resistance-Rating | 50M |
