The HYT S1 is a sport-oriented watch series defined by its fluidic retrograde-hours display: liquid in a capillary tube indicates the hour, while a central hand shows the minutes. Specifications vary by model. The figures below describe the S1 Titanium DLC Blue, reference H03418-A, unless noted otherwise.
What is the HYT S1 Series?
HYT says the “S” in S1 stands for “Sport.” The brand presents the S1 as a permanent collection, with the Japan Limited Edition marking its pre-launch. That Japan edition was limited to eight pieces; the count does not apply to the other S1 models. HYT’s official homepage
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The series’ defining feature is its fluidic hour display. It is paired with conventional watch indications, rather than replacing every hand with a fluid display.
How does the HYT S1 fluidic hour display work?
A colored liquid in a borosilicate capillary tube marks the hour along a retrograde scale. On the S1 Titanium DLC Blue, the tube contains blue liquid. Minutes are shown by a central hand; a power-reserve hand and small seconds complete the listed indications. HYT’s official homepage
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What are the HYT S1 specifications?
HYT’s technical sheet for the Titanium DLC Blue (reference H03418-A) lists these specifications. They should not be assumed to apply to every S1 variant. HYT technical specifications: S1 Titanium DLC Blue
| Specification | S1 Titanium DLC Blue, H03418-A |
|---|---|
| Case | Black coated, satin-finished titanium; black coated titanium crown |
| Crystal | Sapphire with anti-reflective coating |
| Dimensions | 45.30 mm wide × 46.30 mm long × 17.20 mm thick |
| Water resistance | 50 m |
| Movement | HYT 501-CM, mechanical and manually wound; 352 components and 41 jewels |
| Frequency | 28,800 vibrations per hour (4 Hz) |
| Power reserve | 72 hours |
| Dial and hour display | Black coated brass dial; blue liquid in a borosilicate capillary tube |
| Functions | Fluidic retrograde hours, central minutes, power reserve, and small seconds |
| Supplied straps | Pure black rubber and pure black Velcro |
The strap details above describe the options listed with this model; they do not establish replacement availability or compatibility with other references.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How much does the HYT S1 cost?
HYT lists a suggested price of CHF 58,000 excluding taxes for the S1 Titanium DLC Blue. The retrieved technical sheet does not state a date, so this is not confirmation of a current transaction price. It is not a collection-wide price. Check with HYT or a regional retailer for current availability and pricing.
What is the difference between HYT S1 models?
The S1 range includes variants with different materials and colorways, including titanium DLC Blue and Green, beadblasted titanium Blue and Red, and 5N gold/titanium versions, as well as editions such as Japan Limited Edition and Millésime. HYT’s media center lists these variants, while its Japan collection page shows a regional selection. Listings, stock, and regional prices can change. HYT Media Center: S1 Series · HYT Japan: S1 Series
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For a meaningful comparison, check each watch’s reference and edition status, case material and finish, liquid and dial color, movement details, supplied straps, dimensions, water resistance, and model-specific suggested price. The available collection listings are not a normalized specification sheet for every edition.
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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.
