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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The HYT H5 is a large mechanical watch that uses a fluid-filled capillary to display the hours: colored liquid marks the recent past, clear liquid the future, and the boundary between them indicates the present. Its caliber 501 mechanically drives the fluidic module; the liquid is a display, not the watch’s timekeeping regulator. Launch-era reports list a 48.80 mm case and prices that are historical, not current quotes.
What is the HYT H5?
The H5 is part of HYT’s fluidic-watch concept, in which a moving liquid display makes the passage of time visible around the dial. HYT’s official timeline places the model in 2020 and describes caliber 501 as proprietary and developed by TEC Group. A November 2019 launch report, by contrast, said release was planned for that month; those dates reflect different launch and timeline contexts, not a confirmed first-sale date. HYT characterized the H5 as “an esthetic and technical leap” in its official timeline entry.
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How does the H5 liquid time display work?
HYT says its patented fluidic module places two immiscible fluids inside a capillary. The colored fluid represents the recent past and the transparent fluid the forthcoming future. Where the two meet—the meniscus—marks the present, and its position along the scale indicates the hour. The display therefore uses fluid to show hours, while the watch’s mechanical system supplies the movement that drives it.
In HYT’s H5 user guide, the movement drives the fluidic module through bellows fixed to the main plate. The watch is not relying on the liquid itself to regulate time: the mechanical movement powers the module that moves the liquid display.
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What movement is in the HYT H5?
HYT identifies the H5 movement as the proprietary, manually wound caliber 501, developed by TEC Group. The dated launch report lists a frequency of 28,800 vibrations per hour, 41 jewels and an approximately 65-hour power reserve. These are launch-era reported specifications, rather than a current specification sheet.
HYT H5 launch-era specifications and editions
The following two references were detailed in AJHH’s report of November 18, 2019. Its specifications and prices describe the launch-era Japanese market; they should not be read as a complete catalogue of every H5 edition.
| Reference | Fluid and details | Case and water resistance | Movement | Edition and reported launch price |
|---|---|---|---|---|
| H02351 | Green fluid; grey and green details | Satin-finished stainless steel; 48.80 mm diameter, 20.08 mm thick; 50 m water resistance | Manual caliber 501; 28,800 vibrations per hour; 41 jewels; approximately 65-hour reserve | 25 pieces worldwide; ¥7,910,000 before tax in Japan, as reported November 18, 2019 |
| H02353 | Black fluid; black details | Satin-finished stainless steel; 48.80 mm diameter, 20.08 mm thick; 50 m water resistance | Manual caliber 501; 28,800 vibrations per hour; 41 jewels; approximately 65-hour reserve | 25 pieces worldwide; ¥7,910,000 before tax in Japan, as reported November 18, 2019 |
AJHH’s November 2019 launch report says the release was planned for that month and explicitly cautions that the information reflects November 2019 and may have changed. A separate 2020 report describes a blue-fluid H5 limited to 25 pieces and gives a price of €55,000 at that time. The retailer-listed red H5 reference H02248 is another documented variant; its listing reports the same 48.80 mm diameter, 20.08 mm height, 50 m water resistance and 65-hour reserve, but does not establish current inventory. These reports do not show that the listed editions exhaust all H5 variants.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How much did the HYT H5 cost?
No current official price or resale range is established here. The published figures below are historical reports in different currencies and contexts, not directly comparable current offers.
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|---|---|---|
| H02351 and H02353 | ¥7,910,000 before tax each | Japan; AJHH launch-era report published November 18, 2019. The report says details reflect November 2019 and may have changed. |
| Blue-fluid edition | €55,000 | Reported by Perpetual Passion in 2020 for a 25-piece limited edition; historical specialist-reported price, not a current retail or resale quote. |
The Japanese yen figure is specific to the two references in AJHH’s dated launch report; it should not be treated as a current global price. The euro figure belongs to the 2020 blue-edition report and likewise does not establish present-day value.
Servicing the fluidic system
HYT’s H5 user guide says that replacement of the fluidic system must be carried out by a professional watchmaker approved by HYT. It is not an owner-level repair: do not open the watch or attempt to handle the fluid module yourself.
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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.
