Swatch
Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon SO35L400
The Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon (reference SO35L400) is a 42.3 mm Bioceramic watch with a blue dial. It runs on the automatic (Sistem51) caliber Sistem51 with a 90-hour power reserve and is water resistant to 91 m. It was introduced in 2024.
Specifications
Case
- Reference
- SO35L400
- Collection
- Scuba Fifty Fathoms (Blancpain x Swatch)
- Case size
- 42.3 mm
- Thickness
- 14.4 mm
- Case material
- Bioceramic
- Case shape
- Round
- Crystal
- Bio-sourced material, anti-scratch coated
- Water resistance
- 91 m
- Bracelet / strap
- Two-piece NATO-style strap, recycled fishing nets
Dial and bezel
- Dial
- Blue
- Bezel
- Unidirectional rotating Bioceramic
Movement
- Movement
- Automatic (Sistem51)
- Caliber
- Sistem51
- Power reserve
- 90 hours
- Frequency
- 21,600 vph
- Jewels
- 19
Production
- Production
- 2024 – today
Dial versions
This reference was made with these dials and finishes.
SO35L400 Blue
Sun-brushed blue dial
How it compares within the Scuba Fifty Fathoms (Blancpain x Swatch) family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| SO35L400 (This watch) | 42.3 mm | Bioceramic | Blue | Sistem51 | 2024– |
| SO35A100 | 42.3 mm | Bioceramic | Blue | Sistem51 | 2023– |
| SO35B400 | 42.3 mm | Bioceramic | Black | Sistem51 | 2024– |
| SO35G100 | 42.3 mm | Bioceramic | Black | Sistem51 | 2025– |
| SO35I100 | 42.3 mm | Bioceramic | Green | Sistem51 | 2023– |
| SO35N100 | 42.3 mm | Bioceramic | Orange | Sistem51 | 2023– |
| SO35P100 | 42.3 mm | Bioceramic | Yellow | Sistem51 | 2023– |
| SO35P400 | 42.3 mm | Bioceramic | Pink | Sistem51 | 2025– |
| SO35S100 | 42.3 mm | Bioceramic | Grey | Sistem51 | 2023– |
About the Scuba Fifty Fathoms (Blancpain x Swatch) family
The Scuba Fifty Fathoms is the 2023 collaboration between Blancpain and Swatch, a dive watch in Bioceramic with the automatic Sistem51 movement. Each version is named after an ocean.
The catalog lists the Antarctic, Arctic, Atlantic and other ocean editions. Dealers quote the Swatch code and check the box.
Quick answers
- What size is the Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon SO35L400?
- The Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon SO35L400 has a 42.3 mm case, 14.4 mm thick.
- What movement does the Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon SO35L400 use?
- It uses the automatic (sistem51) caliber Sistem51, with a 90-hour power reserve.
- How water resistant is the Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon SO35L400?
- It is water resistant to 91 metres.
- When did the Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon SO35L400 come out?
- It was introduced in 2024.
- What is the Swatch Blancpain x Swatch Bioceramic Scuba Fifty Fathoms Blue Lagoon SO35L400 made of?
- The case is Bioceramic. Bracelet or strap: Two-piece NATO-style strap, recycled fishing nets.
Catalog facts checked November 2026.