The Zodiac Sea Dragon Chronograph is a model family, not one watch with a single set of specifications. The documented examples include different case sizes, dial and strap colors, and chronograph layouts. Because no exact watch reference was supplied for a hands-on account, this article does not claim to have inspected or tested a particular specimen. The clearest way to assess one is to identify its reference first, then compare only the specifications documented for that variant.
Which Zodiac Sea Dragon Chronograph is it?
Start with the reference number, typically found on the watch or its paperwork. Retailer and resale records cover several distinct examples, and their specifications should not be merged into a universal Sea Dragon spec sheet.
| Reference or example | Case and appearance | Movement, functions and crystal | Water resistance and listing status |
|---|---|---|---|
| ZO2240, Zales listing | 43.0 mm stainless-steel case; black dial and rubber strap. | Quartz chronograph. Crystal type and date function are not stated in the Zales listing. | 100 m listed water resistance; two-year limited manufacturer warranty. Zales reported it out of stock when the page appeared in search results. Zales listing |
| ZS2236, Zales listing | 42.5 mm stainless-steel case; brown dial and bezel with brown rubber strap. | Quartz chronograph with date. Crystal type is not stated in the Zales listing. | 100 m listed water resistance; two-year limited manufacturer warranty. Zales reported it out of stock when the page appeared in search results. Zales listing |
| ZO2242, FiveFortyFive listing | 42.5 mm case width; white dial; 22 mm lug width. | Swiss quartz chronograph; mineral crystal. The listing does not specify a date function. | 100 m listed water resistance. The listing describes its individual watch as very good and sold; that condition does not describe all ZO2242 watches. FiveFortyFive listing |
| Sea Dragon Chronograph described by Worn & Wound in 2016; reference not specified | Tonneau-shaped case, 42 mm wide, with 22 mm lugs. | Subdials at 12, 6 and 9, with day/date at 3. Crystal type is not stated. | Water resistance and current availability are not stated in that coverage. Worn & Wound, 2016 |
| Two-register example, individual TimeZone seller post from 2010 | Approximately 42.7 mm case; 22 mm lugs. | Quartz chronograph; acrylic crystal. The post does not specify a date function. | Seller stated 100 m, but explicitly did not guarantee water resistance. This is an individual seller description, not a verified rating for the family. TimeZone seller post |
| ZO2212, TheRealReal resale report | 43 mm stainless-steel case, blue dial and black rubber strap; report describes production as circa the 2000s. | Quartz chronograph with date and bidirectional bezel. Crystal type is not stated. | Water resistance is not stated in the report. TheRealReal report |
These records establish variation, not a definitive catalogue of every Sea Dragon reference. In particular, case shape, subdial positions and day/date placement described in historical coverage should not be assumed to apply to ZO2240, ZS2236 or another reference without matching evidence.
What the design and chronograph layout suggest
Worn & Wound characterized the Sea Dragon Chronograph as having “a bit of that vintage racing chrono flair” in its 2016 coverage. That is the publication’s description, rather than a specification. The documented layouts vary: Worn & Wound described a three-register example with subdials at 12, 6 and 9 and day/date at 3, while a 2010 TimeZone seller described a two-register example.
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In a 2018 article, Hodinkee author James Stacey recalled buying a Sea Dragon Chronograph early in his watch-collecting experience. He described his watch as “A large, ’70s-inspired quartz chronograph with a look that felt a bit like a Monaco crossed with a big vintage diver.” That article’s hands-on subject was the Super Sea Wolf Diver, not the Sea Dragon, so it is a personal recollection rather than a hands-on review of the Sea Dragon reference discussed here. Hodinkee, December 12, 2018
Movement and water-resistance claims
The cited retailer listings describe ZO2240 and ZS2236 as quartz chronographs, and FiveFortyFive describes ZO2242 as a Swiss quartz chronograph. These are published listing descriptions, not results of an independent movement inspection. The available records do not establish a single movement specification for every Sea Dragon Chronograph reference.
Rank #2
- Movement : ST2502
- Dial diameter : Approx.43mm
- Thickness : Approx.13.5mm
- Strap width: Approx.22mm
- Strap circumference : 19m
Zales lists 100 m water resistance for ZO2240 and ZS2236, and FiveFortyFive lists the same figure for ZO2242. Those published ratings are not evidence that a particular used watch still has intact seals or is safe to submerge. A seller’s 2010 description of a separate example also stated 100 m, while explicitly declining to guarantee its water resistance. For a used watch, treat the rating as a reference-level listing claim unless the condition of that specimen has been checked.
Does a Sea Dragon Chronograph take a 22 mm strap?
Only the documented references and examples with an explicitly stated lug width support that figure: FiveFortyFive lists 22 mm for ZO2242, Worn & Wound gives 22 mm for its 2016 example, and the TimeZone seller gave 22 mm for the watch in that 2010 post. This does not prove that every Sea Dragon Chronograph takes a 22 mm strap. Confirm the reference and measure the actual watch’s lug gap before ordering a replacement.
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Availability and buying checks
The cited Zales pages reported ZO2240 and ZS2236 out of stock when they appeared in search results; FiveFortyFive’s ZO2242 listing described its individual specimen as sold. These historical listing states do not establish present availability, and the available records do not provide a dependable current market price.
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Rank #4
- Movement : ST2130
- Mirror material : Synthetic Sapphire
- Dial diameter : Approx.45mm
- Thickness : Approx.15.8mm
- Strap circumference : 19cm
- Match the reference. Compare the number on the watch or paperwork with the seller’s listing. Do not rely on “Sea Dragon Chronograph” alone.
- Compare the actual configuration. Check dial and strap color, case width, bezel, chronograph-register layout, and date or day/date display against reference-specific documentation or clear photographs.
- Separate stated specifications from verified condition. A published 100 m rating does not confirm the seals on an older or used specimen. Ask for evidence of a recent water-resistance check if that matters to your intended use.
- Verify fit before buying a strap. Use a 22 mm replacement only after confirming the lug width on the exact watch; the documented 22 mm figure for ZO2242 should not be generalized to all references.
- Check the sale and warranty terms. The two-year limited manufacturer warranty appears in the Zales listings, but the cited pages reported those watches out of stock. Confirm whether any warranty applies to the specific watch and seller you are considering.
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.




