The Hautlence Sphere Series 1 is a 2023 mechanical watch whose hours appear on a blue rotating sphere rather than a conventional dial. Reference BA80-ST00 pairs that spherical jumping-hour display at 9 o’clock with retrograde minutes at 3 o’clock, inside a horizontal rectangular steel case.
What is the Hautlence Sphere Series 1?
Hautlence’s product page identifies the watch as “THE SPHERE,” Series 1, reference BA80-ST00. Its press archive dates the model to August 2023. It is a hand-wound mechanical watch built around an unconventional way of showing the time: the hour is read from a sphere, while the minutes follow a retrograde track.
The Series 1 is distinct from the earlier HL Sphere 01. The Fondation de la Haute Horlogerie describes that earlier watch with a different movement, white-gold case, 30 m water resistance and an indicated CHF 99,000 price. Those details do not describe BA80-ST00. FHH’s HL Sphere 01 profile is useful for identifying the predecessor, not specifying Series 1.
How does the spherical jumping hour work?
A blue-coated titanium sphere sits at 9 o’clock and serves as the hour display. Hautlence describes it as rotating on three axes, driven by a conical-gear differential: four conical gears move around two crossed spindles set at 21°. At each hour, the sphere performs a choreographed multi-axis jump synchronized with the minute hand’s return.
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- 1.316L Stainless Steel Case/Screw Crown/Steel Closed Caseback
- 2. Seagull ST1721 Jump Hour Mechanical Movement
- 3. Sapphire Crystal / Diameter: 34.5MM / Case Thickness : 10.4MM / Lug to Lug =45MM
- 4.Comfortable Rubber Strap /5.Butterfly Clasp
- 5.Band Width: 20MM*18
At 3 o’clock, the retrograde minute hand travels across a sapphire track. When it reaches the end of the scale, it snaps back to the start as the hour changes. Together, the two displays make the transition between hours especially visible.
Hautlence’s product page gives conflicting descriptions of the sphere’s angular travel: its opening copy says about 1½ rotations, while the technical details say approximately 450°, or 1¼ turns. The exact extent should therefore not be treated as settled; the consistent point is that the sphere makes a multi-axis jump at the hour.
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- 1.316L Stainless Steel Case/Screw Crown/Steel Closed Caseback
- 2. Seagull ST1721 Jump Hour Mechanical Movement
- 3. Sapphire Crystal / Diameter: 34.5MM / Case Thickness : 10.4MM / Lug to Lug =45MM
- 4.Comfortable Rubber Strap /5.Butterfly Clasp
- 5.Band Width: 20MM*18
What are the Series 1 specifications?
The following figures are specifications published by Hautlence, not results of independent testing. The current product page describes a satin-finished stainless-steel case with polished angles, a bevelled single-piece sapphire crystal with a local dome over the sphere, a sapphire caseback and an integrated blue rubber strap.
| Specification | Hautlence’s listing |
|---|---|
| Reference | BA80-ST00 |
| Case | Stainless steel; horizontal rectangular shape |
| Dimensions | 43.0 × 50.8 × 15.6 mm |
| Crystal and caseback | Single-piece bevelled sapphire crystal with local dome; sapphire caseback |
| Strap | Integrated blue rubber |
| Water resistance | 10 ATM, stated as up to 100 m |
| Movement | Calibre A80, hand-wound |
| Power reserve | 72 hours |
| Frequency | 3 Hz |
| Components | 218 |
| Production | Limited to 28 pieces |
Hautlence credits H. Moser & Cie. watchmakers with expert assembly of the calibre. The manufacturer does not describe that as a different movement calibre: the listed movement remains the hand-wound A80.
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- Premium Stainless Steel Construction: 316L stainless steel case with screw crown and steel closed caseback for durability and longevity
- Seagull ST1721 Jump Hour Mechanical Movement: Features reliable automatic mechanical movement with unique jumping hour complication
- Comfortable Genuine Leather Strap: Equipped with genuine leather strap and pin buckle for secure and comfortable wear
- Sapphire Crystal Protection: AR coated sapphire crystal provides scratch resistance and clarity with diameter of 39mm, case thickness of 10.4mm, and lug to lug measurement of 46.8mm
- Standard Band Width: 20mm to 18mm band width allows for easy strap replacement and customization options
See the official Hautlence Sphere Series 1 page for the brand’s current product information.
How much does the Hautlence Sphere Series 1 cost?
Hautlence’s product page lists CHF 66,000 before VAT and states that Series 1 production is limited to 28 pieces. The listed figure is the manufacturer’s price, not evidence of a completed transaction or a live stock position. The page offers a reserve route, but does not establish delivery timing or current availability.
Rank #4
- 【Vintage-Inspired Jumping Hour Mechanism】 A classic jump hour watch with vintage character, powered by the Seagull ST1721 mechanical movement. Unlike traditional hands, this watches displays the hour in a window, jumping precisely at each hour change. Important – Time Setting: Always advance the minute hand clockwise only. Do not turn the minute hand counterclockwise, as this may damage the movement.
- 【Classic 39mm Size for Daily Wear】 39mm case, 20mm genuine leather strap. Total watch length is 260mm, fitting wrists from 160mm to 200mm comfortably. Real wrist test (180mm): The buckle sits at the middle hole, with 3 spare holes on each side – easy to adjust for a looser or tighter fit.
- 【Jumping Hour Characteristic (Normal Behavior)】 Due to the gear function of the Seagull movement, the hour may sometimes jump at 57 minutes instead of exactly 60 minutes. This is normal and does not affect accuracy or functionality.
- 【Premium Materials – Sapphire Crystal & 316L Steel】 Scratch-resistant AR-coated sapphire crystal, 316L stainless steel case, and screw-down crown. Built for daily wear with 50M water resistance (rain, sweat, splashes – not for swimming).
- 【Great Gift for Watch Enthusiasts】 Available in multiple colors. Comes in an box – perfect for birthdays, anniversaries, Father's Day, or as a unique gift for a watch lover.
Where does Series 1 sit in the Sphere lineup?
Hautlence’s press archive records the subsequent releases, but it does not provide a complete technical comparison for each one. The model identifiers and dates below are the chronology stated in the archive; Series 1’s reference is also shown in its product listing.
| Model | Reference | Archive date |
|---|---|---|
| Sphere Series 1 | BA80-ST00 | August 2023 |
| Sphere Series 2 | BA80-ST01 | October 2024 |
| Sphere Series 3 | DA82-TI00 | October 2025 |
| Sphere Series 4 | DA82-TI01 | April 2026 |
The archive’s dates and references do not establish that later models share Series 1’s case, movement, display details, water resistance, edition size or price. Those specifications should be checked against each model’s own technical information rather than carried over from BA80-ST00. The chronology is listed in Hautlence’s press archive.
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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.
