MB&F
MB&F SP One Platinum SP1.PL.BU
The MB&F SP One Platinum (reference SP1.PL.BU) is a 38 mm platinum watch with a skeleton dial. It is water resistant to 30 m. It was introduced in 2025 and is still in production.
Specifications
Case
- Reference
- SP1.PL.BU
- Collection
- Special Projects
- Case size
- 38 mm
- Thickness
- 12 mm
- Case material
- Platinum
- Case shape
- Pebble
- Crystal
- Sapphire, incl. caseback
- Water resistance
- 30 m
- Bracelet / strap
- Calfskin leather, platinum pin buckle
Dial and bezel
- Dial
- Skeleton
Movement
- Movement
- Manual
- Power reserve
- 72 hours
- Frequency
- 18,000 vph
Production
- Production
- 2025 – today (current)
Dial versions
This reference was made with these dials and finishes.
SP1.PL.BU Skeleton
Floating barrel/balance/escapement skeleton; sky-blue flange
How it compares within the Special Projects family
Side by side with other references in the same collection, from the catalog.
About the Special Projects family
Special Projects is a collection MB&F began in 2025, for its 20th anniversary, with the SP One. It sits between the Horological and Legacy Machines and is the brand's smallest and simplest watch so far: a 38 mm, pebble-like case made of a case band and two sapphire domes, showing hours and minutes only, with a hand-wound movement and a 72-hour power reserve.
The SP One is made in platinum and in red gold, the two references listed here. As a recent model, buyers will expect the complete set and the original warranty.
Quick answers
- What size is the MB&F SP One Platinum SP1.PL.BU?
- The MB&F SP One Platinum SP1.PL.BU has a 38 mm case, 12 mm thick.
- How water resistant is the MB&F SP One Platinum SP1.PL.BU?
- It is water resistant to 30 metres.
- Is the MB&F SP One Platinum SP1.PL.BU still in production?
- Yes, it is a current reference.
- When did the MB&F SP One Platinum SP1.PL.BU come out?
- It was introduced in 2025.
- What is the MB&F SP One Platinum SP1.PL.BU made of?
- The case is platinum. Bracelet or strap: Calfskin leather, platinum pin buckle.
Catalog facts checked November 2026.