Breitling Navitimer B01 Chronograph 43vsOmega Speedmaster X 33 Marstimer Chronograph 45mm

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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.

Breitling Navitimer B01 Chronograph 43 at true scale

Navitimer B01 Chronograph 43

Omega Speedmaster X 33 Marstimer Chronograph 45mm at true scale

Speedmaster X 33 Marstimer Chronograph 45mm

Diameter

46mm

45mm

Lug-to-Lug

n/a

48.5mm

Thickness

14.2mm

lowest

14.9mm

Water Resistance

30m

30m

Power Reserve

70h

n/a

MSRP

$10,450

$7,000

lowest

Movement

Breitling B01

Omega 5622

Case

6 specs
Diameter
46mm
45mm
Thickness
14.22mm
14.89mm
Lug-to-Lug
n/a
48.5mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium
Finish
Stainless steel
Titanium

Crystal & Dial

2 specs
Crystal Shape
n/a
Domed
Dial Color
n/a
Black

Movement

3 specs
Caliber
Breitling B01
Omega 5622
Type
Automatic
Quartz
Power Reserve
70h
0h

Pricing

1 specs
MSRP
$10,450
$7,000
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Breitling Navitimer B01 Chronograph 43

The Breitling Navitimer B01 Chronograph 43 is widely praised for its wearability, with owners reporting it fits well on wrists around 175mm to 190mm and wears smaller than its 43mm diameter suggests. Reviewers highlight the COSC-certified Breitling B01 movement's snappy chronograph action and specific dial colors, such as ice blue and white, are noted as appealing. Some owners express a preference for the older winged logo over the current "B" logo. While most owners report no issues, a few owners have experienced quality problems with the chronograph function requiring repairs. Overall, owners and reviewers rate the Breitling Navitimer B01 Chronograph 43 highly for its comfortable fit and attractive dial aesthetics.

Omega Speedmaster X 33 Marstimer Chronograph 45mm

Owners widely praise the Omega Speedmaster X 33 Marstimer Chronograph 45mm for its surprisingly light titanium case, legible analog display, and the near-imperceptible second-hand tick. The unique Mars timekeeping functionality and instrument-like aesthetic are also noted as compelling aspects. However, the watch proves divisive, with some owners criticizing its 30m water resistance and aluminum bezel, and others finding the 45mm case too large. The price premium for a quartz movement and the perceived niche appeal of its Mars-specific features are also points of contention. Overall, owners and reviewers find the Omega Speedmaster X 33 Marstimer Chronograph 45mm a cool, instrument-like watch with unique functionality, though its size and quartz movement are debated.