Side by side
The watches side by side
Differs
BreitlingTop Time B21 Shelby CobraSB21251A1C1

BreitlingPremier B21 Chronograph Tourbillon 42 Willy BreitlingLB2120171C1

General
- Status
- In production
- In production
- Retail price (differs)
- US$51,500
- US$85,300
Case
- Shape
- Round
- Round
- Diameter
- 42 mm
- 42 mm
- Thickness (differs)
- 15.4 mm
- 15.25 mm
- Lug width (differs)
- 22.05 mm
- 22 mm
- Material (differs)
- Ceramic
- 950 platinum
- Bezel
- Fixed
- Fixed
- Caseback (differs)
- Screw-down
- Display (sapphire)
- Crystal (differs)
- Sapphire
- Sapphire, Domed, Anti-reflective on both sides
- Crown
- Push-pull
- Push-pull
- Water resistance
- 100 m
- 100 m
Movement
- Type
- Automatic
- Automatic
- Origin
- In-house
- In-house
- Power reserve
- 55 h
- 55 h
- Frequency
- 28,800 vph (4 Hz)
- 28,800 vph (4 Hz)
- Jewels
- 30
- 30
- Functions
- 1/4th second, 60 minutes
- 1/4th second, 60 minutes
- Complications
- Chronograph
- Small seconds
- Tourbillon
- Chronograph
- Small seconds
- Tourbillon
Dial
- Colour
- Blue
- Blue
- Pattern (differs)
- Matte
- Sunburst
- Indices (differs)
- Mixed
- Arabic numerals
- Hands (differs)
- Baton
- Syringe
Bracelet
- Type
- Leather strap
- Leather strap
- Name (differs)
- Blue racing-themed calfskin leather strap
- Black alligator leather strap
- Clasp (differs)
- Folding clasp, Titanium
- Folding clasp, 18k white gold
- Strap colour (differs)
- Blue
- Black