Omega Seamaster Planet Ocean 6000M Co Axial Master Chronometer 45 5mmvsSeagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Omega Seamaster Planet Ocean 6000M Co Axial Master Chronometer 45 5mm at true scale

Seamaster Planet Ocean 6000M Co Axial Master Chronometer 45 5mm

Seagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm at true scale

Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm

Diameter

45.5mm

45mm

Lug-to-Lug

51.9mm

50mm

lowest

Thickness

18.1mm

15.8mm

lowest

Water Resistance

6000m

highest

1000m

Power Reserve

60h

n/a

MSRP

$13,900

$893

lowest

Movement

Omega 8912

Seagull ST2130

Case

6 specs
Diameter
45.5mm
45mm
Thickness
18.12mm
15.8mm
Lug-to-Lug
51.9mm
50mm
Material
O-Megasteel
Stainless Steel
Finish
O-MEGASTEEL
n/a
Water Resistance
6000m
1000m

Crystal & Dial

2 specs
Crystal Shape
Domed
n/a
Dial Color
Blue
n/a

Movement

4 specs
Caliber
Omega 8912
Seagull ST2130
Power Reserve
60h
0h
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$13,900
$893
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Reviews

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

Omega Seamaster Planet Ocean 6000M Co Axial Master Chronometer 45 5mm

Owners praise the Omega Seamaster Planet Ocean 6000M Co Axial Master Chronometer 45 5mm's excellent finishing and comfortable fit despite its substantial 45.5mm size, with some finding its orange accents surprisingly wearable and its overall feel not obnoxious for a sports watch. Reviewers note a sharper, modern aesthetic and luxurious execution with complex angles and a broad ceramic bezel. Some owners, however, find the 45.5mm size and thickness unsuitable for smaller wrists. The Omega Seamaster Planet Ocean 6000M Co Axial Master Chronometer 45 5mm features the automatic Co-Axial Master Chronometer Calibre 8912 movement with a 60-hour power reserve and no date display. On balance, owners and reviewers appreciate the Omega Seamaster Planet Ocean 6000M Co Axial Master Chronometer 45 5mm for its luxurious finishing and comfortable wearability, though its large size is a consideration for some.

Seagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm

The Seagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving Watch 45mm is praised for its fit, finish, and general quality, with one owner comparing it favorably to a Movado Series 800. Reviewers note a well-executed design, a metallic wave pattern on the dial with a blue-to-black gradient, and a domed sapphire bezel as desirable elements. One owner reports the ST2130 movement runs at +3 seconds per day. The watch features a bead-blasted 316L stainless steel case, a 5mm sapphire crystal, and a helium escape valve. Some owners find the 45mm case large but fitting, while others note a 20mm thickness. A reviewer flags excessive text on the dial and case, uneven luminous material application, and a rotating bezel with a slight rattle. One owner notes bezel fading over 5 years of commercial diving. The community is split on the bezel, with some calling the 60-click unidirectional bezel a minor quirk and another mentioning a 12-hour bezel.

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