Side by side

Serica Ref. 5303 Diving ChronometervsBreitling Superocean Automatic

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Superocean Automatic
BreitlingSuperocean Automatic
MSRP $1,000
What people say

Owners + reviewers, side by side

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

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

Breitling Superocean Automatic

Owners widely praise the Breitling Superocean Automatic for its excellent fit and finish, comfortable bracelet with micro-adjustment, and a fresh design that some find stunning, particularly the blue ceramic bezel and white dial. The watch features a satisfyingly clicking ceramic bezel that is easy to operate and a vibrant dial with luminous hands and hour plots. One owner reports their 42mm model runs about +6 seconds per day, while others note that Breitling watches can sometimes lose time due to magnetization, which can be corrected under warranty. The Breitling Superocean Automatic has a power reserve of approximately 42 hours. Overall, owners rate the Breitling Superocean Automatic highly for its design and build quality at its price point.

At a glance

16 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Superocean Automatic42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Superocean Automatic38h
Water Resistance
Ref. 5303 Diving Chronometer300m
Superocean Automatic300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Superocean Automatic$1,000

Full specifications

Case

5 specs
Diameter
39mm
42mm
Thickness
12.2mm
12.56mm
Lug-to-Lug
46.5mm
Finish
Brushed and polished
Stainless steel
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Enamel Black
Indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
M100 COSC
Breitling 17 (ETA 2824-2 base)
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
38h
Jewels
25
0
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,000
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