Side by side

Breitling Superocean Heritage B20 AutomaticvsSinn U2 S (EZM 5)

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 and reviewers praise the Breitling Superocean Heritage B20 Automatic's refined dial, excellent anti-reflective sapphire crystal, and well-executed polished steel case and ceramic bezel; the 42mm size wears thin and compact, making it comfortable for everyday wear, and Breitling's in-house B20 movement sets it apart among luxury brands at this price point. Lume is flagged as weak for a serious dive watch, and some owners report quality-control inconsistencies—one noted misalignment between the 12 marker and bezel, another between the date window and bezel's 6 o'clock marker, and the 'Chronometre' text positioning questioned on some examples; accuracy ranges from +2 to +3 seconds per day. Strap fit varies with wrist shape; the rubber strap's fitted ends can angle too sharply on flatter wrists, while leather alternatives shift the watch's aesthetic away from its blue-heavy character. On balance, owners and reviewers rate the Breitling Superocean Heritage B

Sinn U2 S (EZM 5)

The Sinn U2 S (EZM 5) features good, solid lume that remains readable throughout the night, though some owners find its initial brightness less intense than other dive watches. Reviewers highlight its excellent legibility due to a high-contrast dial and large hands, housed in robust German submarine steel with a scratch-resistant Tegiment-treated bezel. On balance, owners and reviewers appreciate the Sinn U2 S (EZM 5) for its robust construction and clear dial legibility.

At a glance

20 of 29 specs differ
Diameter
Superocean Heritage B20 Automatic42mm
U2 S (EZM 5)44mm
Power Reserve
Superocean Heritage B20 Automatic70h
U2 S (EZM 5)48h
Water Resistance
Superocean Heritage B20 Automatic200m
U2 S (EZM 5)2,000m
MSRP
Superocean Heritage B20 Automatic$7,250
U2 S (EZM 5)$3,802

Full specifications

Case

7 specs
Diameter
42mm
44mm
Thickness
14.35mm
15.5mm
Lug Width
0mm
22mm
Material
Stainless Steel & 18k Red Gold
Stainless Steel
Finish
Stainless steel
black
Water Resistance
200m
2000m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Black
Indices
Lume
None
Luminescent

Movement

7 specs
Caliber
Breitling B20 (Manufacture)
SW 330-2
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
48h
Jewels
0
25
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$7,250
$3,802
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