The Orient Classic Sun and Moon RA-AS0011S is the open-heart member of Orient’s sun-and-moon dress line: a white dial, a 24-hour sun-and-moon disc at 6 o’clock, and a small movement window at 9. It is a mechanical everyday dress watch, not a diver — sapphire on the front, leather on the wrist, and a 42 mm steel case that sits larger than a Bambino but still wears as a dress piece.
If you already know Orient’s classic sun-and-moon watches (the RA-AK family), this RA-AS0011S is a different generation. It uses calibre F6L24, a screw-down exhibition case back, and a sapphire crystal rather than mineral. The sun-and-moon disc still rotates once every 24 hours so you can read day versus night at a glance, without a second 24-hour hand.
Who the RA-AS0011S suits
This reference suits someone who wants a dress automatic with something to look at beyond hours and minutes. The open heart shows the balance running; the sun-and-moon subdial is the complication people actually use. Roman indices, leaf hands, and a black leather strap keep it in Classic territory. It is not a sports watch and it is not 200 m rated — rain, commuting, and hand washing are the intended water use.
The 42 mm width and 49.5 mm lug-to-lug are the numbers that matter on the wrist. Thickness is 14.0 mm because of the exhibition back and the sun-and-moon module, so it is a taller dress watch than a slim Bambino. Lug width is 22 mm on Orient’s published spec sheet.
What you get on the dial
Orient UK lists a white dial with a sun-and-moon complication and a skeleton window. Retailers sometimes call the same surface silver because the sunray finish reads bright in photos. Hour marks are applied Roman numerals; the small seconds live with the rest of the automatic layout rather than a separate subdial. The 6 o’clock disc is a day/night display, not a true astronomical moonphase — it tells you roughly where you are in the 24-hour cycle.
The 9 o’clock opening is a semi-skeleton cut-out, not a full skeleton watch. You see part of the movement; the rest of the dial stays readable. The case back is a separate see-through, screw-down back with crystal glass, so you can also watch the rotor from the reverse.
Movement: Orient F6L24
F6L24 is Orient’s in-house mechanical calibre for this sun-and-moon open-heart series. Official specifications: automatic winding, hand-winding, hacking seconds (second-hand halt), 22 jewels, 21,600 vibrations per hour, made in Japan. Independent retailer sheets consistently list about 40 hours of power reserve. Accuracy published by European retailers is typically in the −15/+25 seconds per day band Orient quotes on this family — treat that as a factory window, not a COSC claim.
Hacking means the seconds hand stops when you pull the crown to set the time, which makes a radio or phone sync straightforward. Hand-winding is useful if the watch has sat for a weekend.
Specifications
- Reference: RA-AS0011S (packing variant RA-AS0011S30B)
- Collection: Orient Classic, Sun and Moon Semi Skeleton
- Movement: Orient calibre F6L24, automatic, hand-wind, hacking, 22 jewels, 21,600 vph, Japan
- Power reserve: approximately 40 hours
- Functions: hours, minutes, centre seconds, sun-and-moon day/night disc at 6, open heart at 9
- Case: stainless steel, 42.0 mm width, 49.5 mm lug-to-lug, 14.0 mm thick
- Crystal: sapphire (front); crystal glass on the exhibition case back
- Case back: screw-down, see-through
- Dial: white, Roman indices, sun-and-moon subdial, semi-skeleton window
- Strap: black leather, 22 mm lug width
- Water resistance: 50 m / 5 bar
- GTIN / EAN: 4942715028084
These dimensions follow Orient’s published case figures (42.0 mm / 49.5 mm) and Orient UK’s 14.0 mm thickness and 22 mm lug width. Strap width listings of 21 mm on some shops are retailer measurements of the leather, not a second official lug size — we keep the manufacturer lug width.
Everyday use and care
50 m water resistance covers rain and a washed pair of hands. It does not cover swimming, showering with soap, or diving. Leather straps also dislike soakings; if you want a shower-safe strap, swap after purchase rather than treating this as a tool watch.
Sapphire on the front is the practical upgrade versus older mineral sun-and-moon models: it shrugs off keys and desks better. The exhibition back is a display, not extra water protection — the screw-down construction is what holds the 50 m rating, provided the crown is pushed in.
What is the water resistance of the Orient RA-AS0011S?
50 metres (5 bar). That is splash and rain resistance for a dress watch, not swimming or diving. Keep the crown pushed in, and do not operate the crown underwater.
Is the RA-AS0011S a good everyday dress watch?
Yes, if your day is office, commuting, and evenings. The 42 mm case and 14 mm thickness are present on the wrist, the leather strap is the intended look, and the sun-and-moon disc is easy to read. It is a poor choice if you want a 200 m diver or a 38 mm slim dress watch.
What movement does the RA-AS0011S use?
Orient calibre F6L24: Japanese automatic with hand-winding and hacking seconds, 22 jewels, 21,600 vph, about 40 hours of reserve. It is a different calibre from the F6B24 used on many RA-AK sun-and-moon models.
Does the RA-AS0011S have a real moonphase?
No. The disc at 6 o’clock is a 24-hour sun-and-moon (day/night) display. It is decorative and useful for AM/PM, not a lunar-phase complication that tracks the moon over 29.5 days.
How does the RA-AS0011S compare to Orient Bambino or RA-AK sun-and-moon models?
Bambinos are typically smaller (often 38.4 or 40.5 mm) with mineral crystal and no sun-and-moon disc. Classic RA-AK sun-and-moon watches use F6B24 and usually skip the 9 o’clock open heart. RA-AS0011S adds the open heart, sapphire crystal, and the 42 / 49.5 / 14 mm case.
Where can I buy the Orient RA-AS0011S in Australia?
This listing is in stock at Chronospride. 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.
Browse more Orient dress pieces in Orient Classic and our Orient Sun and Moon Australia buyer guide if you are still comparing layouts.
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.
| Case-Size | 42mm |
|---|---|
| Band-Width | 22mm |
| Lug-Width | 22mm |
| Lug to lug size | 49.5mm |
| Case Thickness | 14mm |
| UPC | 4942715028084 |
| GTIN | 4942715028084 |
| EAN | 4942715028084 |
