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Breitling Superocean Heritage B31 AutomaticvsSeiko 5KX

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

Superocean Heritage B31 Automatic
BreitlingSuperocean Heritage B31 Automatic
MSRP $8,050
5KX
Seiko5KX
MSRP $350
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 B31 Automatic

Owners widely praise the Breitling Superocean Heritage B31 Automatic for its excellent finishing and comfortable wearability, with many appreciating the sunburst dials and the redesigned mesh bracelet. The watch is noted for its versatile design, suitable for daily wear and swimming, and some owners find its weight surprisingly manageable due to the lug shape and bracelet design. The Breitling B31 movement offers a 78-hour power reserve and COSC certification. However, the watch's design is divisive, with some disliking its aesthetic and others criticizing the use of a Sellita SW200 movement at its price point, though discounts are seen to mitigate this. Some owners also find the watch too large for smaller wrists due to its lug-to-lug distance, and the white date display at 6 o'clock is a point of contention for some. Overall, owners rate the Breitling Superocean Heritage B31 Automatic highly for its finishing and comfortable wearability, despite some design and movement criticisms.

Seiko 5KX

Owners widely praise the Seiko 5 Sports SKX series for its strong lume and comfortable wearability, with many noting its compact feel due to a short lug-to-lug length. The NH36 movement's accuracy varies, with typical performance between +/-5 to 10 seconds per day, though some report better. A lack of screw-down crown and ISO certification are noted drawbacks for its water resistance. Some owners find the bracelet to be of cheaper construction with hollow links, and a few have reported quality control issues. The consensus is that the Seiko 5 Sports SKX series offers good value for its price, appealing to those who appreciate its tool-like nature and iconic lineage.

At a glance

19 of 29 specs differ
Diameter
Superocean Heritage B31 Automatic42mm
5KX42.5mm
Power Reserve
Superocean Heritage B31 Automatic78h
5KX41h
Water Resistance
Superocean Heritage B31 Automatic200m
5KX100m
MSRP
Superocean Heritage B31 Automatic$8,050
5KX$350

Full specifications

Case

8 specs
Diameter
42mm
42.5mm
Thickness
12.03mm
13.4mm
Lug-to-Lug
46mm
Lug Width
20mm
22mm
Material
Stainless Steel & 18k Red Gold
Stainless Steel
Finish
Stainless steel
Brushed and polished
Water Resistance
200m
100m
Caseback
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Indices
Applied
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Breitling B31 (Manufacture Breitling & AMT)
Seiko 4R36
Beat Rate
0 vph
28,800 vph
Power Reserve
78h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$8,050
$350
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