The Citizen Promaster Eco-Drive Altichron BN4065-07L is an analog outdoor watch with an altimeter and electronic compass, designed to keep the time visible while showing altitude or bearing. Citizen announced it on September 6, 2023, for release in Japan on October 5, 2023. The manufacturer’s materials establish its features and specifications, rather than independent findings about how it performs on the wrist or in the field.
What the Citizen Altichron BN4065-07L does
Part of Citizen’s Promaster Land series, the BN4065-07L combines conventional timekeeping with altitude and bearing information. Unlike a watch that switches to an LCD readout, its information is displayed with analog hands. Citizen says the wearer can read altitude or bearing while the time display remains visible. The watch uses the J280 Eco-Drive movement.
Citizen gives the altimeter a measurement range of −300 m to 10,000 m. That is the manufacturer’s stated range; it is not an independent assessment of measurement accuracy in changing conditions.
How the analog altimeter and compass fit together
The BN4065-07L presents its outdoor readings through hands rather than a digital screen, with time remaining on display while altitude or bearing information is read. Citizen identifies the compass as electronic and the altimeter as metric on its U.S. product page. The available manufacturer information does not provide a detailed operating procedure, calibration guidance, or independent tests of compass accuracy, so consult the watch’s documentation for instructions before relying on either function outdoors.
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BN4065-07L specifications
| Specification | Citizen’s listed information |
|---|---|
| Movement | J280 Eco-Drive |
| Display and functions | Analog time display; altitude and bearing information; metric altimeter and electronic compass listed on the U.S. product page |
| Altitude range | −300 m to 10,000 m, per Citizen’s Japanese announcement |
| Case size | 46.7 mm diameter and 16.4 mm thickness, per Citizen’s Japanese announcement; 47 mm case width on Citizen’s U.S. page |
| Case material and finish | Super Titanium with Duratect MRK and DLC treatment in the Japanese specifications; black Super Titanium case on the U.S. page |
| Crystal | Spherical sapphire crystal with anti-reflective coating in the Japanese specifications; spherical sapphire crystal on the U.S. page |
| Strap | Nylon |
| Water resistance | 20 bar in the Japanese specifications; WR200/20Bar on the U.S. page |
| Accuracy | ±15 seconds per month, per Citizen’s Japanese specifications |
| Operating time | Approximately 11 months on a full charge, per Citizen’s Japanese specifications |
These are manufacturer-listed specifications, not independently tested results. The U.S. page also lists a blue dial, buckle closure, and date display. For the model’s launch and Japanese specifications, see Citizen’s September 6, 2023 announcement; U.S. product details are on Citizen’s BN4065-07L page.
Case dimensions and what the regional listings mean
Citizen’s Japanese announcement specifies a 46.7 mm case diameter and 16.4 mm thickness. The U.S. product page lists the case width as 47 mm, a rounded figure consistent with the Japanese diameter. When comparing retailer listings, use the model number BN4065-07L and note which market’s page supplies the measurement; the two stated widths do not establish a different case.
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- ★Digital Compass: Accurately pinpoint direction to safely find your way through wilderness and in whiteout conditions. We calibrated the compass before sending out. If you still find a problem, we recommend you to calibrate it automatically or manually.
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- ★Basic Functions: Double Alarms, Dual Time, 12/24H Format, Date/Week, Hourly Chime, Waterproof to 3ATM, Super Backlight.
- ★Material & Size: High quality thick ABS case 50*47*17mm, durable and breathable PU double hollow band with stainless steel pin buckle is suitable for wrist from 6.7 to 9.0 inches. Weight 76g is very lightweight and comfortable, just feel you wear nothing on wrist.The watch is a little large, Please carefully measure the wrist size before buying.The temperature displayed on the watch is the ambient temperature， when measuring temperature, please remove away from your wrist.
Release date and launch-market price
Citizen announced the BN4065-07L on September 6, 2023, and specified an October 5, 2023 release in Japan. Its suggested Japanese retail price at launch was ¥137,500 including tax (¥125,000 before tax). This is a historical Japanese launch price, not a current or universal price. Citizen’s U.S. product page displayed “Sold Out” when accessed in 2026; that status describes that page at that time, not availability in other markets or at other sellers.
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- 【Multi-function】As a compass watch for hiking or outdoor activities,we will calibrated the compass during production. But it’s better calibrate it automatically or manually before you use it(Check the manual for calibration).As barometer watch,shows local pressure and sea level pressure. As altimeter watch,tells current altitude and 24-hour history by trend graph. 4 weather forecast symbols indicates the predicated weather.(Units can be switch between Fahrenheit and Celsius).
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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