Product Information
Item Details
Factory BLS Factory
Brand Breitling
Collection Navitimer 1 B01 Chronograph
Reference Navitimer 1 B01 Chronograph
Version Latest Edition
Technical Specifications
Specification Details
Movement
Modified Asian 7750 Automatic Chronograph Movement
Case Diameter 42.5 mm
Case Thickness 16.4 mm
Crystal Sapphire Crystal (Front & Exhibition Caseback)
Beat Rate 28,800 BPH
Timegrapher Test Results
Test Item Result
Beat Rate 28,800 BPH
Amplitude 220°
Beat Error 0.5 ms
Daily Rate +5 Seconds/Day
Testing Note
Timekeeping performance may vary depending on mainspring power reserve, wearing habits, ambient temperature, and testing conditions. These results reflect measurements taken during the final pre-shipment quality control inspection.
Pre-Shipment Inspection Checklist
Inspection Item Status
Movement Operation ✓ Passed
Timekeeping Test ✓ Passed
Chronograph Function ✓ Passed
Crown Winding & Time Setting ✓ Passed
Case Dimensions ✓ Verified
Sapphire Crystal ✓ Inspected
Dial & Hands Alignment ✓ Inspected
Bezel Inspection ✓ Inspected
Caseback Inspection ✓ Inspected
Bracelet & Clasp ✓ Inspected
Exterior Finish ✓ Inspected
Final Quality Control ✓ Approved
