Breitling Top Time B21 Ford MustangvsKobold Phantom SL Avantgarde

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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Top Time B21 Ford Mustang

Phantom SL Avantgarde
Diameter
42mm
41mm
Thickness
15.4mm
lowest
17mm
Water Resistance
100m
200m
highest
Power Reserve
55h
n/a
MSRP
$51,500
$18,500
lowest
Movement
Breitling B21
Valjoux 7750
Case
6 specsCrystal & Dial
1 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Breitling Top Time B21 Ford Mustang for its automotive-grade paint dial, incredible high glassbox sapphire, and exceptional leather racing strap. The Highland Green dial specifically receives acclaim for its striking in-person appearance, with one owner noting it differs from the Navitimer's green sunburst. Some owners find the 42mm size and small lugs wear well, while others note its less classical style may limit wearability. A split exists among owners regarding the dial's aesthetic, with some finding it too cartoony and the car logo cringey, while others praise its bright, colorful design. The watch is powered by the Breitling B21 automatic movement and offers 100m water resistance. Overall, owners and reviewers rate the Breitling Top Time B21 Ford Mustang highly for its striking dial finishing and unique automotive-inspired design.
Owners report the Kobold Phantom SL Avantgarde can be found for better value on the secondary market, though customer service issues and long repair times are significant concerns for some. One owner reported a crown threading issue on their steel Phantom, while another experienced the same problem on a titanium model. Despite these drawbacks, some owners still appreciate the watch's style and build quality. Overall, owners rate the Kobold Phantom SL Avantgarde with mixed feelings due to customer service concerns despite appreciating its style and build quality.
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