The Citizen 62-6198 Challenge Diver is a substantial, practical 1970s automatic diver with a distinctive dial and bezel—and enough variation between surviving examples that condition and originality matter more than matching one “correct” photograph. Fratello’s 2020 review reports a 40 mm case, 47 mm lug-to-lug, 13 mm thickness and 20 mm lugs. Its listed 150 m rating is historical, not evidence that an individual vintage watch is safe to swim with today.
What is the Citizen 62-6198 Challenge Diver?
The 62-6198 is a Citizen automatic dive watch from the early 1970s through approximately 1977, according to Michael Stockton’s January 17, 2020 Fratello review. The review describes a stainless-steel case, black dial with luminous indices, mineral crystal, screw-down caseback and bidirectional external dive bezel. Those details are useful reference points, not a manufacturer specification sheet: no official 62-6198 specification sheet was located.
It belongs to Citizen’s wider Challenge Diver story, but reference-specific facts should not be inferred from the family name alone. Citizen says the Challenge Diver debuted in 1977. Its heritage account describes a watch found barnacle-covered at Long Reef Beach in Australia in 1983, still working, but does not identify that watch as a 62-6198.
Dimensions and movement
Fratello reports these measurements and movement specifications for the watch:
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| Item | Reported specification |
|---|---|
| Case diameter | 40 mm |
| Lug-to-lug | 47 mm |
| Thickness | 13 mm |
| Lug width | 20 mm |
| Movement | Automatic Citizen caliber 6000 |
| Jewels and rate | 21 jewels; 21,600 beats per hour |
| Functions | Hand-winding and quick-set date |
| Historical water-resistance rating | 150 m; not a current-condition test |
The collector-maintained Sweephand Citizen diver guide associates reference 62-6198 with case number 4-600851Y and notes a movement stamp reading “6001,” alongside caliber 6000, 21 jewels and a 21,600 bph rate. It also records a date, short hands, a ball at the seconds-hand end and red date printing. The difference between the review’s caliber naming and the guide’s stamp is worth noting when inspecting a specific watch; neither source is a factory parts or specification document.
How it looks and wears
Dial, hands and bezel
Fratello describes rectangular hour markers, bright green lume, a Mercedes-style hour hand and a lollipop seconds hand. The bold bezel is bidirectional and friction-fit, with a luminous pip at 12 and minute markings over the first 15 minutes. That combination gives the watch a clear, tool-like appearance without making its dimensions unusually large by modern standards.
Rank #2
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Wrist presence and straps
At a reported 47 mm lug-to-lug and 13 mm thick, it has noticeable height and presence, while the 40 mm diameter keeps it within a wearable range for many wrists. Fratello’s reviewer considered it suitable for everyday wear. The reported 20 mm lug width allows a modern 20 mm rubber watch strap as a replacement option; that should not be confused with a verified original strap or a guaranteed fit for every aftermarket strap. The review says the watch was sold on a bracelet or rubber Tropic strap.
What varies between examples?
There is no single visual checklist in the cited sources that certifies a 62-6198 as original. Fratello notes variation in dial printing, caseback styles and date-wheel color, and questions whether a black date wheel on one pictured example is original. Sweephand records disputes over orange dials and blue bezels, discusses bezel lume-pip details, and notes that reproduction bezels exist. Its author says contemporary catalog or advertising evidence would help settle authenticity questions.
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For that reason, evaluate the whole watch rather than treating one dial color, date-wheel color or bezel detail as conclusive. A plausible-looking part does not prove originality, and a difference from one published example does not by itself prove a watch is wrong.
What to check before buying
Ask the seller for sharp, well-lit photographs and a clear account of service and replaced parts. These checks can help you assess an example, but they are not a universal authentication test.
Rank #4
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- Dial and lume: Request straight-on and angled images showing dial text, markers and lume condition.
- Hands and seconds hand: Check their shape and condition, including the seconds-hand tip, against the configuration being represented.
- Date wheel: Ask for a photograph with the date visible, and whether the wheel has been replaced.
- Bezel: Inspect the insert, markings, pip and operation; ask whether the bezel is original or a reproduction.
- Caseback and case: Request images of the caseback markings and case surfaces, and ask whether the case has been polished or repaired.
- Crown and crown tube: Ask whether the crown threads and operation have been checked. Fratello reports a crown arrangement with a tube effectively integral to the case, so damage there may be serious.
- Movement and service: If available, request a movement photograph showing its markings and ask for service documentation and a list of replacement parts.
Water resistance and ownership realities
The 150 m figure reported by Fratello describes the watch’s historical rating; it does not establish present-day water resistance. Age, seals, prior repairs and crown-tube condition can all affect whether a particular watch remains sealed. Do not rely on the dial or a vintage rating as proof of safety in water. Have an appropriate watchmaker assess and pressure-test the individual watch before exposing it to water.
Fratello reports a screw-down crown arrangement, threaded caseback and two crystal gaskets, and warns that a stripped crown tube can leave the watch needing to stay dry. These are observations about the design, not a diagnosis of every surviving example. The review also says Citizen no longer services these vintage watches, making an independent vintage mechanical-watch specialist a sensible service category to seek; confirm a provider’s experience with this model before commissioning work.
Best Value
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Challenge Diver heritage: what is established
Citizen’s official diver-history page says a Challenge Diver debuted in 1977 and recounts how one was found at Long Reef Beach in 1983, covered in barnacles but still functioning, with no water having entered. The company says the episode gave the Challenge Diver a distinctive place in its heritage. The account does not identify the recovered watch as reference 62-6198, so it supports the family history rather than a claim about this reference’s production or survival.
Citizen’s FY2021 fourth-quarter presentation also recounts the discovery and describes an updated Challenge Diver design released in August 2022. Citizen’s heritage page says the 2022 Mechanical Diver 200m carries forward design cues while receiving an improved case and a movement with enhanced magnetic resistance. These are modern family-level connections, not evidence that the 62-6198 itself has those specifications.
Is the 62-6198 worth considering?
It is a compelling candidate for someone who wants a vintage Citizen diver with a legible tool-watch design, useful everyday proportions and a hand-windable automatic movement with quick-set date, as reported by Fratello. The trade-off is that variant details and replacement parts require care, while a vintage water-resistance rating cannot substitute for a current test. Stockton called it “a worthwhile addition to anyone’s vintage collection” in his 2020 review; that is his assessment, not a guarantee about every example.
Fratello’s review estimated $700–$1,000 in January 2020 and contrasted it with $200–$300 four to five years earlier. Those are historical estimates only, not today’s market price. Current transaction pricing was not established by the cited sources, so judge a listing by its condition, service history, originality evidence and asking price at the time of purchase.
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