Side by side

Breitling Superocean Heritage B20 AutomaticvsSeiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

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

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 Marinemaster Marinemaster 1968 Heritage Diver's Watch

The Seiko Prospex Marinemaster 1968 Heritage Diver's Watch is widely praised for its excellent quality and finishing, with reviewers and owners noting its GS-level craftsmanship and Zaratsu-inspired polishing. Owners appreciate its refined design, comfortable case shape, and the 4:00 crown position, with some finding it more manageable on the wrist than other models. The Caliber 8L45 movement offers a 72-hour power reserve and accuracy within -5/+10 seconds per day, and the bracelet features an improved clasp with an extension system. However, some find the price point high, and one reviewer noted the unsigned winding crown as a missed opportunity. On balance, owners and reviewers rate the Seiko Prospex Marinemaster 1968 Heritage Diver's Watch highly for its premium finishing and tool-like appearance at its price point.

At a glance

17 of 29 specs differ
Diameter
Superocean Heritage B20 Automatic42mm
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Power Reserve
Superocean Heritage B20 Automatic70h
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
Water Resistance
Superocean Heritage B20 Automatic200m
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
MSRP
Superocean Heritage B20 Automatic$22,650
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600

Full specifications

Case

7 specs
Diameter
42mm
42.6mm
Thickness
14.35mm
14.1mm
Lug-to-Lug
49.3mm
Material
18kt Pink Gold
Stainless Steel
Finish
Stainless steel
Brushed and polished
Water Resistance
200m
300m
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, index(es) and bezel

Movement

4 specs
Caliber
Breitling B20 (Manufacture)
8L45
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
72h
Jewels
0
35

Pricing

1 specs
MSRP
$22,650
$3,600
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