Two Panda Chronographs That Run on Daylight, and the Cheaper One Swims Deeper

In April 2023, Orient put a light-charged chronograph inside a case built like a dive watch and gave it the plain name TX02. Lay the white-dial version, reference RA-TX0203S10B, next to Citizen's Endeavor Chrono CA4730-59A and you could mistake them for siblings. Both wear steel bracelets. Both have three black registers on a white face, the layout collectors call a panda. Both carry a rotating timing bezel and a sapphire crystal, and both charge from light, so neither asks for the battery swap that most quartz watches need every few years. Spend a week with the spec sheets, though, and the two Japanese makers turn out to have spent their money in different places.

Here is how the two compare on paper, using the makers' own pages wherever they publish a figure.

The case for the Orient

Start with the depth rating. The TX02 is rated to 200 meters, and Orient backs that figure with a crown that screws down and, per its global spec sheet, a screwed caseback. The bezel is stainless steel and turns one way only, in 120 clicks, which is the behavior you want from a bezel used to time anything underwater. Orient does not say what the insert is made of, so we won't guess.

The case is also the more compact of the two. It measures 42.8mm across and 13.1mm thick, with 48.1mm from the tip of one lug to the other and 22mm between the lugs. On its bracelet Orient lists it at 167 grams, so it is not a light watch. The bracelet is 316L steel, closing on a trifold buckle fitted with a release button and a safety latch.

None of this makes the TX02 a certified dive watch, and Orient never calls it one. It is a sports chronograph built to the same habits as the Seiko SKX007 and the dive watches that followed the Rolex Submariner: a crown that seals, a bezel that cannot be knocked into giving you extra time, and a depth rating with room to spare. The full listing is on Orient Watch USA's TX02 page.

The case for the Citizen

Citizen has put its effort into the face and the finish. The Endeavor's white dial carries a wave texture under applied indices, and the chronograph seconds hand is bright blue, which makes a running stopwatch easy to pick out at a glance. The bezel is scalloped at the edge and set with a ceramic insert, the harder and more fade-resistant material of the two watches. A date window sits between four and five o'clock.

The Eco-Drive caliber B620 is also the better documented stopwatch. Citizen states that the stopwatch can measure up to 60 minutes, counted in fifths of a second, and that it shows 12/24-hour time alongside the date. Orient lists chronograph and date functions for the TX02 but does not publish its measuring range. Citizen's case is the larger at 44mm, by the figure in its spec table, although the copy on the same page says 43mm. Citizen does not give a thickness or a lug-to-lug length. Water resistance is 100 meters, which Citizen describes as fine for swimming, showering and snorkeling. The specifics are on Citizen's Endeavor Chrono page.

How long they run, and how well

Daylight charging is the shared trick, and on the running time it is close to a draw. Orient quotes roughly half a year of running from a single full charge of the VS752. Citizen's product page gives no figure for the B620, but Worn & Wound's hands-on with a Citizen Promaster that uses the same caliber puts it at six months or more. Either watch will keep going through a long stretch in a drawer.

Accuracy goes the Citizen's way, with a caveat. Worn & Wound reports the B620 at 15 seconds a month, a figure Citizen does not print on the Endeavor's page. Orient's global spec sheet allows the VS752 plus or minus 20. Even the Orient's number works out to well under a second a day, a level of precision that was the whole shock of the quartz era and that no mechanical watch at either price comes near.

Light power does not mean no upkeep. The rechargeable cell inside will age, gaskets dry out, and a bracelet can loosen. Water resistance depends on a seated crown and sound seals, whatever the dial says.

The warranty and the bill

In the United States, Citizen backs the Endeavor for five years under a limited warranty, against three years from Orient for the TX02. Neither warranty pays for knocks and scratches, but two extra years on the Citizen is a fair point in its favor for anyone who plans to wear one watch for a long time.

Then the money. We checked both makers' US stores on October 29, 2026, and prices can change. Citizen listed the Endeavor at $650 with a sale price of $520. Orient listed the TX02 at $465 with a sale price of $350. That puts the Orient $185 cheaper at full price and $170 cheaper on sale.

Which one to buy

For less money, the Orient brings a 200-meter rating, a crown and caseback that both screw down, and a slightly smaller case. The Citizen asks more and returns it as a textured dial, a ceramic bezel insert, a longer warranty, a better described chronograph and the tighter reported accuracy.

If the watch is going in the sea, the pool or a weekend bag with nothing else in it, buy the Orient TX02. It is the better value and the more practical tool, and its advantage is equipment for the money, not timekeeping. If you will mostly wear it on land and care how the dial catches light, the Citizen is the nicer object and earns its premium. Either way, you'll set it once and stop thinking about batteries.

For more, see Japan, watch history and the Quiet Menace watches section.