Omega Seamaster 300 Co Axial Master Chronometer 41mmvsYema Diver

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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 300 Co Axial Master Chronometer 41mm at true scale

Seamaster 300 Co Axial Master Chronometer 41mm

Yema Diver at true scale

Diver

Diameter

41mm

39.5mm

Lug-to-Lug

48mm

n/a

Thickness

13.8mm

10.9mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

60h

n/a

MSRP

$8,000

$990

lowest

Movement

Omega 8912

Sellita SW200-1

Case

7 specs
Diameter
41mm
39.5mm
Thickness
13.85mm
10.95mm
Lug-to-Lug
48mm
n/a
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Steel
n/a
Water Resistance
300m
200m

Crystal & Dial

1 specs
Crystal Shape
Domed
n/a

Movement

4 specs
Caliber
Omega 8912
Sellita SW200-1
Power Reserve
60h
0h
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$8,000
$990
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Reviews

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

Omega Seamaster 300 Co Axial Master Chronometer 41mm

Owners widely appreciate the Omega Seamaster 300 Co Axial Master Chronometer 41mm for its desirable throwback aesthetic and the comfort of its bracelet, including its clasp extension. Reviewers note the watch offers strong value with its METAS-certified Caliber 8912 movement and improved bezel. Some owners find the 41mm case wears larger than expected due to its thickness, and a few find the lollipop seconds hand visually heavy. Overall, owners and reviewers rate the Omega Seamaster 300 Co Axial Master Chronometer 41mm highly for its blend of vintage design and modern performance at its price point.

Yema Diver

One owner reported a water ingress issue on their Yema Diver the first time it got wet in a lake, despite rinsing and inspecting the watch and bezel. Another owner noted that this manual wind Yema Diver, while featuring a cool patina, is unlikely to be waterproof or gain value, positioning it as a fun second watch rather than an investment. Overall, owners view the Yema Diver as a fun second watch rather than an investment, with one owner experiencing a water ingress issue.

From video reviewers

The Swiss Sellita movement is a notable feature. Reviewers did not reach a consensus on any weaknesses.

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