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Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mmvsSeiko Prospex Sea PADI Special Edition

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.

Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm

Owners widely report the Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm offers adequate wrist presence and can handle an active lifestyle, with some finding it a wearable everyday watch. However, multiple owners suggest a 40-42mm size would be more proportional and comfortable, with one noting the bracelet feels chunky. One owner finds the 44mm Diver 300M Chronograph GMT cluttered and too busy to read quickly, while another appreciates its all-in-one complications for daily wear and travel. On balance, owners and reviewers find the Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm a capable watch, though its 44mm size is a point of contention for some.

Seiko Prospex Sea PADI Special Edition

Owners widely praise the Seiko Prospex Sea PADI Special Edition for its robust build quality, excellent bezel action, and strong lume that performs well in low light. Reviewers note specific models feature attractive dials, such as the jewel-toned teal with a water pattern or a deep dark blue gradient. Some owners highlight the comfortable wearability and solid bracelets. The 4R36 movement is mentioned with a 41-hour power reserve, while the 6R55 movement offers a 72-hour power reserve and a stated accuracy of +25/-15 seconds per day. One owner finds the multi-lingual date function and divers extension difficult to use, and bracelet adjustment can be initially frustrating. On balance, owners and reviewers rate the Seiko Prospex Sea PADI Special Edition highly for its dive watch functionality and attractive dial designs.

At a glance

18 of 29 specs differ
Diameter
Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm44mm
Prospex Sea PADI Special Edition45mm
Power Reserve
Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm60h
Prospex Sea PADI Special Edition41h
Water Resistance
Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm300m
Prospex Sea PADI Special Edition200m
MSRP
Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm$27,300
Prospex Sea PADI Special Edition$650

Full specifications

Case

8 specs
Diameter
44mm
45mm
Thickness
17.2mm
13.2mm
Lug-to-Lug
52.8mm
47.7mm
Lug Width
21mm
22mm
Material
18kt Sedna Gold
Stainless Steel
Finish
Steel
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

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

Movement

5 specs
Caliber
Omega 9900
4R36
Beat Rate
0 vph
28,800 vph
Power Reserve
60h
41h
Jewels
0
24
Complications
Chronograph
None

Pricing

1 specs
MSRP
$27,300
$650
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