“Edox Class-1 Chronoffshore Limited Edition” does not identify one confirmed reference in Edox’s official material. The closest fully specified match is the Japan-limited Chronoffshore-1 Chronograph, reference 10242-TIN-NIBUGM: a 45 mm titanium quartz chronograph with a date and Edox-stated 1,000 m water resistance. Check the reference number before relying on that description; other limited Chronoffshore-1 watches have different materials and specifications.
What does “Class-1 Chronoffshore” refer to?
Edox’s current Japan-facing product pages use the name “Chronoffshore-1.” The exact wording “Class-1 Chronoffshore” does not resolve to a unique verified reference in the official sources available. It may be an imprecise name for a Chronoffshore-1, but the wording alone is not enough to identify a particular watch or apply one model’s specifications to another.
The strongest fully specified match is the Japan-limited Chronoffshore-1 Chronograph, reference 10242-TIN-NIBUGM. Edox lists its features on the official product page: Edox reference 10242-TIN-NIBUGM.
Specifications of reference 10242-TIN-NIBUGM
These details apply to this reference, not to every limited-edition Chronoffshore-1.
#1 Best Overall
- Valjoux 7750 automatic movement
- Chronograph function; Sub-second
- Rotating minute track bezel; Inner tachymeter bezel
- Luminious; Day-date window
- Screw-down crown
- Movement: quartz EDOX 102 caliber
- Functions: chronograph and date
- Case: titanium, 45 mm in diameter and 15.5 mm thick
- Water resistance: 1,000 m, as stated by Edox
- Crystal: sapphire
- Bezel: ceramic, unidirectional
- Other feature: helium escape valve
- Strap: rubber
Edox’s listing provides manufacturer specifications, not independent test results. A stated rating also does not establish that a particular pre-owned watch still meets its original water-resistance specification.
How the limited Chronoffshore-1 variants differ
“Limited edition” is not a sufficient identifier: Edox’s announcements and listings describe multiple releases with materially different specifications. Use the reference number first when checking a listing, then confirm the physical watch matches it.
Rank #2
- Swiss Made men’s dive watch powered by Swiss quartz Ronda 5030.D chronograph movement with date function and 43-month battery lifespan.
- 45mm CARBONOX case with unidirectional rotating bezel, screw-on stainless steel case back, and hardened mineral crystal for rugged performance.
- Black and red dial with constant glow illumination, orange accents, and luminous hands ensures excellent underwater visibility.
- Black genuine rubber strap with IP black buckle provides lightweight comfort and a secure fit for tactical and marine use.
- Water resistant up to 200 meters (20 ATM), designed to meet Navy SEAL operational standards; includes manufacturer’s warranty and original Luminox packaging.
| Reference | Release and distinguishing details | Price or edition information |
|---|---|---|
| 10242-TIN-NIBUGM | Japan-limited Chronoffshore-1 Chronograph; titanium, 45 mm by 15.5 mm; quartz EDOX 102; 1,000 m water resistance. See Edox’s product listing. | Edox’s 2025 Japan announcement listed ¥297,000 including tax for this and reference 10242-TIN-VINGM; this is the announcement price, not a verified current market price. Edition count is not stated in the cited listing. 2025 announcement. |
| 10242-TIN-VINGM | A separate dial variant in the 2025 Japan-limited 10242-TIN release. The announcement describes the 1,000 m titanium series and its 45 mm by 15.5 mm dimensions. Edox announcement. | ¥297,000 including tax in Edox’s 2025 Japan announcement; not a verified current market price. Edition count is not stated in the cited announcement. |
| 10242-NGMCAS-NDGM | All-black Japan-limited release announced in 2024; Grade 2 titanium, 45 mm diameter, 15.5 mm thickness and 1,000 m water resistance. Edox announcement. | ¥297,000 including tax in the 2024 Japan announcement; not a verified current market price. Edition count is not stated in the cited announcement. |
| 10221-3BU3-BMOPD1 | A different Japan-limited model: steel case, 45 mm diameter, 13 mm thick, 500 m water resistance, and five diamonds at the “1” index. Edox’s product listing. | Edox’s listing says it is limited to 100 pieces; no price is stated in that listing. |
| 10020 37RBU BIR | An older Chronoffshore-1 10th Anniversary Limited Edition shown in Edox’s 2015 catalog. The catalog does not establish that it is the watch meant by “Class-1 Chronoffshore.” Edox 2015 catalog. | Limited to 215 pieces worldwide, according to the catalog; no price is stated there. |
The figures in this comparison are manufacturer-published information. The cited material does not establish independent sales, durability or market statistics.
Quick Recap
Rank #4
- ALL-BLACK STEALTH STYLE: Matte black CARBONOX case, bezel, and dial with blackout markers create a sleek, tactical look perfect for covert missions or everyday wear.
- RUGGED DIVE PERFORMANCE: Water resistant up to 200 meters with a unidirectional bezel and screw-down crown, this 44mm dive watch is built for underwater reliability.
- ALWAYS VISIBLE TECHNOLOGY: Luminox Light Technology provides constant glow visibility for up to 25 years—no external light or battery changes needed for night or low-light use.
- LIGHTWEIGHT & DURABLE: CARBONOX construction offers extreme strength while maintaining a lightweight profile for comfortable, all-day wear.
- PRECISE SWISS QUARTZ MOVEMENT: Equipped with a Swiss Quartz movement for accurate, reliable timekeeping whether diving, training, or exploring.
Rank #3
- CLASSIC RETRO CASIO DESIGN A timeless digital watch that has remained an icon for decades. The vintage square face and polished stainless steel bracelet deliver a clean, minimalist style that complements casual, business, and everyday wear for both men and women.
- RELIABLE EVERYDAY DIGITAL FUNCTIONS Stay organized with practical features including a 1/100-second stopwatch, daily alarm, hourly time signal, auto calendar, and selectable 12/24-hour time format—everything you need in a dependable everyday
- LONG-LASTING 7-YEAR BATTERY Powered by a dependable CR2016 battery designed to last approximately seven years under normal use, giving you years of worry-free performance with minimal maintenance.
- LIGHTWEIGHT & COMFORTABLE Weighing only 46 grams, the slim profile and adjustable stainless steel bracelet provide exceptional comfort for all-day wear. The self-adjustable clasp allows for a customized fit on a wide range of wrist sizes.
- TRUSTED CASIO QUALITY Built with Casio's legendary reliability, this water-resistant digital watch features a durable chrome-plated resin case, stainless steel bracelet, LED backlight for nighttime visibility, and quartz accuracy of approximately ±30 seconds per month.
How to verify a watch before buying
- Get the complete reference number. Ask for a clear photograph of the reference on the watch or its documentation. For the 1,000 m titanium chronograph described above, the reference is 10242-TIN-NIBUGM.
- Match the visible watch to that reference. Compare the dial and case details, case material, dimensions, and colorway with Edox’s listing or announcement. Do not treat another 10242 variant—or a steel 10221—as interchangeable.
- Confirm what the seller means by “limited.” Ask which release and geography they mean, and request documentation supporting any claimed edition number. A limited-edition label alone does not establish the reference or edition count.
- Assess the individual watch’s condition separately from its published rating. Edox’s specification describes the model; it is not evidence that a used example has been independently tested or retains its original water resistance.
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.
