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Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mmvsSeiko Prospex Sea JAWS 50th Anniversary Limited 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 43 5mm

The Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm is widely praised for its versatile aesthetic, excellent finishing, and legibility, with owners appreciating its smooth winding action and the wave dial's depth. Some reviewers note the helium escape valve is an unnecessary feature for most users, and one owner found the bracelet clasp massive and the watch heavy on the bracelet. The ceramic case is noted as surprisingly light and scratch-resistant but potentially prone to shattering, and while the bezel action is generally exceptional, one owner found it less crisp than competitors. Accuracy ranges from +1/+2 seconds per day to about -6 seconds per day, and the METAS-certified 8806 movement, while time-only, offers magnetic resistance. On balance, owners and reviewers rate the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm highly for its blend of tool watch capability and elegant design at its price point.

Seiko Prospex Sea JAWS 50th Anniversary Limited Edition

The Seiko Prospex Sea JAWS 50th Anniversary Limited Edition is praised for its well-executed movie homage, featuring a striking silver-to-blue gradient dial with a hidden shark design and the "JAWS" logo. Owners note the special case back marked with the Orca boat and shark fin, and the inclusion of a special box. The watch is considered a fun summer piece, with a comfortable blue silicone strap, despite its 45mm dimensions. The 4R36 automatic movement is noted to have a 41-hour power reserve, with accuracy reported between +45 and -35 seconds per day. On balance, owners and reviewers appreciate the Seiko Prospex Sea JAWS 50th Anniversary Limited Edition for its unique Jaws-themed dial and commemorative details.

At a glance

17 of 29 specs differ
Diameter
Seamaster Diver 300M Co Axial Master Chronometer 43 5mm43.5mm
Prospex Sea JAWS 50th Anniversary Limited Edition45mm
Power Reserve
Seamaster Diver 300M Co Axial Master Chronometer 43 5mm55h
Prospex Sea JAWS 50th Anniversary Limited Edition41h
Water Resistance
Seamaster Diver 300M Co Axial Master Chronometer 43 5mm300m
Prospex Sea JAWS 50th Anniversary Limited Edition200m
MSRP
Seamaster Diver 300M Co Axial Master Chronometer 43 5mm$10,500
Prospex Sea JAWS 50th Anniversary Limited Edition$795

Full specifications

Case

7 specs
Diameter
43.5mm
45mm
Thickness
14.27mm
13.2mm
Lug-to-Lug
51.5mm
47.7mm
Lug Width
21mm
22mm
Material
Titanium
Stainless Steel
Finish
Black ceramic
Water Resistance
300m
200m

Crystal & Dial

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

Movement

5 specs
Caliber
Omega 8806
4R36
Power Reserve
55h
41h
Jewels
0
24
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$10,500
$795
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