Description
Hanhart THERMOSPHERE Limited Edition
Model reference: 775.274-3338 and 775.274-6428
The Hanhart THERMOSPHERE Limited Edition is a highly purposeful tool watch inspired by the intense and time-critical world of firefighting breathing apparatus operations. Limited to just 112 pieces, this special edition was developed in collaboration with the Baden-Württemberg State Firefighters Association and translates key operational time markers directly onto the bezel. The result is a watch with a genuine functional concept, a strong service-linked identity, and the unmistakable durability expected from Hanhart.
Based on the architecture of the Hanhart AQUASPHERE, the THERMOSPHERE adapts the robust dive watch platform for a very different environment. Where the AQUASPHERE is designed to provide orientation underwater, the THERMOSPHERE draws its purpose from missions defined by heat, smoke, physical strain, and restricted visibility. Its name references the Ancient Greek word thermós, meaning “heat”, a fitting link to the demanding conditions faced by firefighters during active operations.
The defining feature of the THERMOSPHERE is its functional rotating bezel. Distinctive triangular luminous markers reflect the time checkpoints used in breathing apparatus monitoring, allowing the wearer to quickly track operational time at a glance. When an operation begins, the solid triangle on the bezel is aligned with the minute hand. From there, the wearer can monitor key stages of the deployment, including the typical 30-minute duration of a single-cylinder configuration or the 60-minute duration associated with twin-cylinder use.
Legibility is central to the watch’s design. The dark blue dial is supported by bold Super-LumiNova® coated hands, numerals, dial markers, and bezel markings, ensuring clarity in low light and complete darkness. The highlighted minute hand provides rapid time orientation, while the yellow, blue, and red accents draw directly from the visual language of the fire service. At 12 o’clock, the “112” emergency number is subtly referenced, with the first “1” visually separated to strengthen the connection to European fire and rescue services.
The Baden-Württemberg Firefighters Association emblem appears on both the dial and case back, giving the watch a clear connection to its source of inspiration. The limited edition number is engraved on the screwed titanium case back, reinforcing the exclusivity of the model. At 42 mm, with a 12.95 mm case height and a 49 mm lug-to-lug measurement, the THERMOSPHERE offers a substantial yet balanced presence on the wrist.
Built for practical use, the THERMOSPHERE is available on Hanhart’s Hook-Strap textile strap or stainless steel bracelet. The Hook-Strap’s elastic construction allows for fast adjustment and can be worn comfortably over protective clothing, making it especially relevant to the watch’s operational theme. A convex anti-reflective sapphire crystal, ceramic bezel inlay, 30 bar water resistance, and Hanhart’s regulated automatic movement complete a watch made not simply to show the time, but to measure it with purpose.
Technical Specifications
- Model
- Hanhart THERMOSPHERE Limited Edition
- Limited to 112 pieces
- Edition size references the European emergency number for fire and rescue services
- Developed in collaboration with the Baden-Württemberg State Firefighters Association
- Case
- Diameter: 42 mm
- Height: 12.95 mm
- Lug to lug: 49 mm
- Material: Satin and polished stainless steel
- Convex sapphire crystal with anti-reflective coating
- Water resistance: 30 bar / 30 ATM according to DIN 8310
- Bezel
- Fluted blue bezel
- Ceramic bezel inlay
- Triangular luminous markers inspired by breathing apparatus monitoring checkpoints
- Designed to support quick operational time tracking
- Case Back
- Screwed titanium case back
- Limited edition number engraved: XXX/112
- Features the emblem of the Baden-Württemberg Firefighters Association
- Crown
- Crown with modern Hanhart “h” logo
- Dial and Hands
- Dark blue dial with Hanhart logo
- Numerals and hands with Super-LumiNova®
- Dial and hands with Super-LumiNova® coating
- Red flame and red lion, official emblem of the Baden-Württemberg Firefighters Association
- Highlighted “1” at 12 o’clock to emphasise the European emergency number 112
- High-contrast yellow, blue, and red accents inspired by fire service visual language
- Strap
- Available on Hook-Strap textile strap or stainless steel bracelet
- Hook-Strap design allows quick adjustment and practical wear over protective clothing
- Movement
- Automatic movement
- Base: Sellita SW 200-1 or Soprod P024
- Frequency: 28,800 A/h / 4 Hz
- Jewels: 25
- Power reserve: 38 hours
- Hanhart regulation: 0 to +8 seconds per day, averaged over all positions
- Functions
- Hours
- Minutes
- Central seconds
- Date
- Special time display concept designed to support emergency responders
