Side by side

Differs

Breitling Premier B25 Datora 42RB2510371G1

Breitling Premier B25 Datora 42

Breitling Premier B21 Chronograph Tourbillon 42 Léon BreitlingRB2120211G1

Breitling Premier B21 Chronograph Tourbillon 42 Léon Breitling

General

Status: In production; In production
Introduced (differs): 2021; 2022
Retail price (differs): US$39,900; US$80,000

Case

Shape: Round; Round
Diameter: 42 mm; 42 mm
Thickness (differs): 15.35 mm; 15.25 mm
Lug width: 22 mm; 22 mm
Material: 18k rose gold; 18k rose gold
Bezel: Fixed; Fixed
Caseback: Display (sapphire); Display (sapphire)
Crystal: Sapphire, Domed, Anti-reflective on both sides; Sapphire, Domed, Anti-reflective on both sides
Crown: Push-pull; Push-pull
Water resistance: 100 m; 100 m

Movement

Calibre (differs): Breitling B25 (Manufacture Concepto); Breitling B21 (Manufacture La Joux-Perret)
Type: Automatic; Automatic
Origin: In-house; In-house
Power reserve (differs): 48 h; 55 h
Frequency: 28,800 vph (4 Hz); 28,800 vph (4 Hz)
Jewels (differs): 32; 30
Functions (differs): 1/4th second, 30 minutes
Day, date, month & moon-phase; 1/4th second, 60 minutes
Complications (differs): Chronograph
Date
Day
Day-date
Month
Moon phase
Small seconds; Chronograph
Small seconds
Tourbillon

Dial

Colour: Cream; Cream
Pattern (differs): Matte; Sunburst
Indices: Arabic numerals; Arabic numerals
Hands: Syringe; Syringe

Bracelet

Type: Leather strap; Leather strap
Name: Brown alligator leather strap; Brown alligator leather strap
Clasp: Folding clasp, 18k rose gold; Folding clasp, 18k rose gold
Strap colour: Brown; Brown