Side by side

Breitling Navitimer B01 ChronographvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Navitimer B01 Chronograph
BreitlingNavitimer B01 Chronograph
MSRP $10,100
What people say

Owners + reviewers, side by side

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

Breitling Navitimer B01 Chronograph

Owners widely question the value retention of the Breitling Navitimer B01 Chronograph, with one owner purchasing it for $6,546 and considering a return or sale. While the Breitling B01 movement is acknowledged as reliable and amazing, its complexity leads to more expensive servicing, and resale value is unpredictable. Some owners find the price prohibitive compared to other Navitimer models, though it is considered a dream watch. One owner notes the watch is precise with hardly any deviation and achieves its rated ~70-hour power reserve, while another describes its gorgeous mint dial and bracelet as a "stunner" but not robust enough for everyday work wear. On balance, owners rate the Breitling Navitimer B01 Chronograph highly for its amazing in-house movement and stunning dial, despite concerns about its high price and resale value.

Seiko Prospex SPEEDTIMER Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design with a clean, balanced dial and an external tachymeter bezel. Reviewers highlight the upgraded case and bracelet, noting improved comfort and good value for a well-designed chronograph with an in-house movement. The caliber 8R48 movement features a vertical clutch and column wheel with MEMS technology for durability and precision. Points to consider include the 4:30 date window and a 14.6mm thickness, while the 45-hour power reserve is noted as an area for potential improvement. On balance, reviewers find the Seiko Prospex SPEEDTIMER Mechanical Chronograph to be a solid offering with good value, particularly for its design and in-house movement.

At a glance

17 of 29 specs differ
Diameter
Navitimer B01 Chronograph41mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
Navitimer B01 Chronograph70h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
Navitimer B01 Chronograph30m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
Navitimer B01 Chronograph$10,100
Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

6 specs
Diameter
41mm
42mm
Thickness
13.6mm
14.6mm
Lug-to-Lug
49.5mm
Finish
Stainless steel
Brushed and polished
Water Resistance
30m
100m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Indices
Applied
Lume
None
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
Breitling B01
8R48
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
45h
Jewels
0
34
Complications
Chronograph
None

Pricing

1 specs
MSRP
$10,100
$2,500
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