The Orient RA-TX0203S is the white “panda” solar chronograph in Orient’s diver-design Mako sports line. Japanese listings use RN-TX0203S; export codes also appear as RA-TX0203S and RA-TX0203S10B. Same watch: white metal dial, black subdials, 42.8 mm steel case, sapphire, 200 m rating.
It is a solar quartz chronograph, not an automatic. Light through the dial charges calibre VS752. A full charge is about six months. There is no rotor, no hand-winding, and no battery swap in normal use. Accuracy is published at about +20 to −20 seconds per month — quartz, not mechanical.
Who the RA-TX0203S suits
Buy this if you want a Mako-shaped sports watch that you can leave in a drawer and pick up again. The panda layout (white dial, black counters) is the colourway. Blue RA-TX0201L and black RA-TX0202B share the same case and movement.
It is a diver-design chronograph, not an ISO 6425 dive watch. Orient states 20 bar / 200 m with a screw-down crown and screw-down case back, and is explicit that it is not an ISO-standard diver. Fine for swimming and showering with the crown locked. Not a certified saturation or professional dive instrument.
Dial, bezel, and case
The dial is a white metal finish with three black subdials: 24-hour at 3, 60-minute chronograph at 6, small seconds at 9. Date sits between 4 and 5. Arabic 12, applied indices, and lume on hands and markers. Solar charging uses those subdials, which is why the layout looks busy compared with a three-hand Mako.
Case is 42.8 mm across (3–9), 48.1 mm lug-to-lug (12–6), 13.1 mm thick. Lug width 22 mm. Unidirectional rotating bezel with the six-groove Mako profile. Front glass is sapphire. Crown and case back are screw-down. Bracelet is SUS316L steel, about 22 mm, trifold clasp with push-button and security latch. Published weight is about 163–167 g. That is a substantial sports watch, not a slim dress piece.
Movement: VS752 solar chronograph
VS752 is a solar-powered quartz chronograph. Functions: hours, minutes, small seconds, date, 24-hour indicator, and a 1/5-second stopwatch with a 60-minute counter. Leave it in daylight or indoor light. If it has sat in the dark for months, give it a window-sill charge before you rely on the chrono.
Compared with an automatic Kamasu or Mako III (F6922), you lose the mechanical rotor and gain set-and-forget accuracy plus a chronograph. Compared with a three-hand solar, you get subdials and a stopwatch at the cost of a thicker, busier dial.
Specifications
- Reference: RA-TX0203S / RA-TX0203S10B / RN-TX0203S
- Collection: Orient Sports / Mako diver-design solar chronograph
- Movement: VS752 solar quartz chronograph
- Accuracy (published): About +20 to −20 seconds per month
- Power reserve: About 6 months on a full charge
- Functions: Time; date; 24-hour subdial at 3; 60-minute chrono at 6; small seconds at 9; 1/5-second stopwatch
- Case: Stainless steel, 42.8 mm diameter, 48.1 mm lug-to-lug, 13.1 mm thick
- Crystal: Sapphire
- Bezel: Unidirectional rotating, diver-design
- Crown / back: Screw-down crown; screw-down case back (dolphin icon on Mako sports backs)
- Dial: White (“panda”) with black subdials; luminous hands and indices
- Bracelet: SUS316L stainless steel, 22 mm lug width, trifold clasp with security latch
- Water resistance: 20 bar / 200 m (not an ISO 6425 diver)
- Weight: About 163–167 g
Mako solar vs Kamasu automatic
Kamasu / Mako III (RA-AA081 / RA-AA082) is a 41.8 mm automatic with F6922, sapphire, and 200 m on a steel bracelet — no chronograph, no solar. RA-TX0203S is larger (42.8 mm), quartz-solar, and a chronograph. Same sports family language, different job. If you want a mechanical diver-style daily, look at Kamasu. If you want a panda chrono that charges from light, this is the Mako solar.
Frequently asked questions
What movement is in the Orient RA-TX0203S?
Calibre VS752, a solar-powered quartz chronograph. About six months of reserve on a full charge, published accuracy around +20 / −20 seconds per month. It is not an automatic.
Is the RA-TX0203S a real dive watch?
It is a diver-design sports watch with 200 m water resistance, a unidirectional bezel, and a screw-down crown. Orient states it is not an ISO-standard diver. Use it for swimming with the crown locked; do not treat it as certified professional dive kit.
What is the case size?
42.8 mm diameter, 48.1 mm lug-to-lug, 13.1 mm thick, 22 mm lug width. Official Orient sports figures for the RA-TX0201 / 0202 / 0203 family.
Does it have a sapphire crystal?
Yes. Scratch-resistant sapphire on the front. Some third-party manuals list mineral glass; Orient’s sports spec sheet for this reference is sapphire.
How do I charge the solar movement?
Wear it in daylight or leave it near a window. Indoor light also charges, more slowly. A full charge is about six months. If the seconds hand is skipping or the chrono is dead after storage, charge before you use it.
Where can I buy the Orient Mako solar chronograph in Australia?
This listing is in stock at Chronospride (SKU RN-TX0203S). 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.
See more Orient sports pieces in Orient watches Australia and the Orient divers catalogue if you are comparing Kamasu and Mako automatics.
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.
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 | 42.8mm |
| Band-Width | 22mm |
| Lug-Width | 22mm |
| Lug to lug size | 48.1mm |
| Case Thickness | 13.1mm |
| MPN | RA-AR0004S |
| Gender | Men's |
| Band-Material | Leather |
| Case-Material | Stainless Steel |
| Movement | Automatic |
| 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 |
