Side by side
The watches side by side
Differs
BreitlingPremier B21 Chronograph Tourbillon 42 Willy BreitlingLB2120171C1

ChopardAlpine Eagle 41 XP CS Platinum295396-9001

General
- Status
- In production
- In production
- Retail price
- US$85,300
- Not known
Case
- Shape
- Round
- Not known
- Diameter (differs)
- 42 mm
- 41 mm
- Thickness (differs)
- 15.25 mm
- 8 mm
- Lug width
- 22 mm
- Not known
- Material
- 950 platinum
- 950 platinum
- Bezel
- Fixed
- Not known
- Caseback
- Display (sapphire)
- Display (sapphire)
- Crystal (differs)
- Sapphire, Domed, Anti-reflective on both sides
- Sapphire
- Crown (differs)
- Push-pull
- Screw-down
- Water resistance
- 100 m
- 100 m
Movement
- Type
- Automatic
- Automatic
- Origin
- In-house
- In-house
- Power reserve (differs)
- 55 h
- 60 h
- Frequency
- 28,800 vph (4 Hz)
- 28,800 vph (4 Hz)
- Jewels (differs)
- 30
- 31
- Certification
- Not known
- COSC
- Functions (differs)
- 1/4th second, 60 minutes
- Hours and minutes
- Seconds
- Stop seconds
- Complications (differs)
- Chronograph
- Small seconds
- Tourbillon
- Hacking (stop) seconds
Dial
- Colour
- Blue
- Blue
- Pattern (differs)
- Sunburst
- Textured
- Indices
- Arabic numerals
- Not known
- Hands
- Syringe
- Not known
Bracelet
- Type (differs)
- Leather strap
- Metal bracelet
- Name
- Black alligator leather strap
- Not known
- Clasp (differs)
- Folding clasp, 18k white gold
- Folding clasp, 950 platinum
- Strap colour
- Black
- Not known