Side by side
The watches side by side
Differs
BreitlingPremier B21 Chronograph Tourbillon 42 Willy BreitlingLB2120171C1
RolexDay‑Date 40228236
General
- Status
- In production
- In production
- Discontinued
- Not known
- 2023
- Retail price
- US$85,300
- €67,400
Case
- Shape
- Round
- Round
- Diameter (differs)
- 42 mm
- 40 mm
- Thickness (differs)
- 15.25 mm
- 12 mm
- Lug width (differs)
- 22 mm
- 21 mm
- Material
- 950 platinum
- 950 platinum
- Bezel (differs)
- Fixed
- Fluted
- Caseback (differs)
- Display (sapphire)
- Screw-down
- Crystal (differs)
- Sapphire, Domed, Anti-reflective on both sides
- Sapphire
- Cyclops
- Not known
- Yes
- 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
- 70 h
- Frequency
- 28,800 vph (4 Hz)
- 28,800 vph (4 Hz)
- Jewels (differs)
- 30
- 32
- Certification
- Not known
- Superlative Chronometer
- Functions (differs)
- 1/4th second, 60 minutes
- Centre hour, minute and seconds hands
- Instantaneous day and date in apertures, secure rapid-setting
- Stop-seconds for exact time setting
- Complications (differs)
- Chronograph
- Small seconds
- Tourbillon
- Central seconds
- Date
- Day
- Day-date
- Hacking (stop) seconds
Dial
- Colour (differs)
- Blue
- Grey, set with diamonds
- Material
- Not known
- Gold
- Pattern
- Sunburst
- Sunburst
- Indices (differs)
- Arabic numerals
- Baton
- Hands (differs)
- Syringe
- Baton
- Lume
- Not known
- Chromalight
Bracelet
- Type (differs)
- Leather strap
- Metal bracelet
- Name (differs)
- Black alligator leather strap
- President
- Material
- Not known
- 950 platinum
- Clasp (differs)
- Folding clasp, 18k white gold
- Folding clasp
- Strap colour
- Black
- Not known