© Breitling
Breitling
Navitimer B09 Chronograph 41 / B02 Chronograph 41 Cosmonaute
AB0950211B1X1 / AB0230211B1X1
Read the reviewChoosing
Model comparison
Choose two or three models: movements, dimensions, functions and prices from our reviews.
On a small screen, scroll the table sideways.
| Specification | BreitlingNavitimer B09 Chronograph 41 / B02 Chronograph 41 Cosmonaute | Armin StromMirrored Force Resonance Zeitgeist 1665 3N |
|---|---|---|
| Reference | AB0950211B1X1 / AB0230211B1X1 | ST26-ZG.90 |
| Winding | Manual winding | Manual winding |
| Calibre | Breitling B09 / B02 | ARF21 |
| Diameter | 41 mm | 43 mm |
| Size / thickness | 41 × 13mm | 43 × 11.55 mm |
| Power reserve | Approx. 70 hours | 80 hours |
| Case material | Steel; 41 × 13mm | Steel; 43 × 11.55 mm |
| Functions | Not stated in the review | Not stated in the review |
| Crystal | Not stated in the review | Not stated in the review |
| Water resistance | 3 bar | 3 ATM |
| Price and market | US price: B09 from $7,900; B02 from $10,600, excluding sales tax | Not stated in the review |
Breitling · Navitimer B09 Chronograph 41 / B02 Chronograph 41 Cosmonaute
Strengths
Regular production makes this historical hand-wound format accessible without chasing a limited allocation.
Things to consider
Water resistance is only 3 bar, and the Cosmonaute’s 24-hour display takes some adjustment.
Review date: 22 October 2026
Breitling: Navitimer B02 Cosmonaute specifications and priceBreitling: Navitimer B09 core collectionArmin Strom · Mirrored Force Resonance Zeitgeist 1665 3N
Strengths
The strongest attraction is the visible interaction between two regulators. A collector interested in mechanics has something to observe every day.
Things to consider
Just 3 ATM water resistance and an Alcantara strap call for care; this is a weak choice as an only watch for a waterside holiday.
Review date: 23 October 2026
Armin Strom — official Zeitgeist 3N product pageArmin Strom — October 16 press release