Side by side

Breitling Superocean Heritage B20 AutomaticvsSeiko Prospex Sea

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

Superocean Heritage B20 Automatic
BreitlingSuperocean Heritage B20 Automatic
MSRP $22,650
Prospex Sea
SeikoProspex Sea
MSRP $1,100
What people say

Owners + reviewers, side by side

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

Breitling Superocean Heritage B20 Automatic

Owners widely praise the Breitling Superocean Heritage B20 Automatic for its gorgeous aesthetics, with many singling out the popping blue dial and the overall quality from movement to finish. The 42mm case is considered a favorite for its wearability and fit on many wrists, and its versatility for dressing up or down is frequently highlighted. The clasp on Breitling's rubber straps is a noted favorite. Some owners report a "crunchy" bezel rotation, deeming it disappointing for the price, and a few find the watch too heavy or chunky, wishing for a smaller option, though others appreciate its substantial presence. Overall, owners rate the Breitling Superocean Heritage B20 Automatic highly for its appealing design and comfortable wearability on a variety of straps.

Seiko Prospex Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

At a glance

17 of 29 specs differ
Diameter
Superocean Heritage B20 Automatic42mm
Prospex Sea41.3mm
Power Reserve
Superocean Heritage B20 Automatic70h
Prospex Sea72h
Water Resistance
Superocean Heritage B20 Automatic200m
Prospex Sea300m
MSRP
Superocean Heritage B20 Automatic$22,650
Prospex Sea$1,100

Full specifications

Case

7 specs
Diameter
42mm
41.3mm
Thickness
14.35mm
12.5mm
Lug-to-Lug
48.2mm
Material
18kt Pink Gold
Stainless Steel
Finish
Stainless steel
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
Breitling B20 (Manufacture)
6R55
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$22,650
$1,100
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