DAVOSA Argonautic Lumis Collection
The Argonautic Lumis takes the proven Argonautic platform and adds one of the most practical upgrades a dive watch can have: Swiss Tritium T25 lume tubes. Unlike photoluminescent SuperLumiNova - which requires regular light charging and fades over hours - Tritium T25 tubes emit a steady, constant glow for 25+ years without any charge needed. No sunlight, no charging, no fading. The watch is always legible in complete darkness. Combined with 300m ISO 6425 rating and a Swiss automatic movement, the Argonautic Lumis is the choice for serious night divers, cave divers, and anyone who needs guaranteed visibility in blackout conditions.
Tritium T25 vs SuperLumiNova - Key Differences
| Tritium T25 | SuperLumiNova BGW9 | |
|---|---|---|
| Light source | Radioactive decay (self-powered) | Photoluminescent (light-charged) |
| Needs charging? | No | Yes - requires UV or ambient light |
| Fades in dark? | No - constant glow | Yes - fades over hours |
| Lifespan | ~25 years (half-life) | Indefinite (recharges) |
| Best for | Cave diving, night ops, blackout | General diving, everyday wear |
Key Specifications
- Swiss Automatic Movement - ETA 2824-2 or Sellita SW200
- 300m Water Resistance / ISO 6425 certified
- Tritium T25 Lume Tubes on indices and hands - permanent self-illumination
- Sapphire Crystal with anti-reflective coating
- Unidirectional 60-Click Steel Bezel
- Screw-Down Crown and solid caseback
Available Models
| Dial Color | Ref. | Bracelet | Price |
|---|---|---|---|
| Black | 161.529.20 / 161.529.22 | PentaLink | $1,120 |
| Blue | 161.529.04 / 161.529.44 / 161.529.40 | PentaLink or TriaLink | $1,120 |
| White (BS) | 161.529.10 / 161.529.11 | PentaLink or TriaLink | $1,150 |
Frequently Asked Questions
- Is the Tritium radioactive?
- Yes, but safely. Tritium T25 tubes are sealed glass vials - the radioactive gas never contacts your skin. Regulatory authorities worldwide permit Tritium watches for civilian use; the dose from wearing a Tritium watch is negligible compared to natural background radiation. The Swiss watch industry has used Tritium lume for decades.
- What does BS mean in Argonautic Lumis BS?
- BS refers to the bracelet system - specifically the TriaLink bracelet version. The BS suffix differentiates TriaLink-equipped references from PentaLink versions within the same model family.
- How long do the Tritium tubes last?
- T25 tubes have a radioactive half-life of approximately 12.3 years, meaning after 25 years the brightness is at 25% of its original output. Many wearers consider the watch fully legible well beyond 20 years of use.
- Does the Argonautic Lumis also have SuperLumiNova?
- On some models, yes - both Tritium T25 and SuperLumiNova BGW9 are applied, creating a dual-lume system. Check the individual product listing for confirmation on each reference.
