Omega Speedmaster 38 Co Axial Chronometer Chronograph 38mmvsRolex Cosmograph Daytona

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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 Speedmaster 38 Co Axial Chronometer Chronograph 38mm at true scale

Speedmaster 38 Co Axial Chronometer Chronograph 38mm

Rolex Cosmograph Daytona at true scale

Cosmograph Daytona

Diameter

38mm

40mm

Lug-to-Lug

44.9mm

n/a

Thickness

14.7mm

n/a

Water Resistance

100m

100m

Power Reserve

52h

72h

highest

MSRP

$8,700

lowest

$42,700

Movement

Omega 3330

4131

Case

7 specs
Diameter
38mm
40mm
Thickness
14.7mm
n/a
Lug-to-Lug
44.9mm
n/a
Lug Width
18mm
n/a
Material
Steel & Yellow Gold
18 kt yellow gold
Finish
Steel
18 kt yellow gold
Caseback
n/a
Monobloc middle case, screw-down case back and winding crown

Crystal & Dial

4 specs
Crystal Shape
Domed
Flat
Dial Color
Silver
Turquoise
Indices
n/a
Index
Lume
None
Chromalight

Movement

4 specs
Caliber
Omega 3330
4131
Beat Rate
0 vph
28,800 vph
Power Reserve
52h
72h
Jewels
0
47

Pricing

1 specs
MSRP
$8,700
$42,700
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Reviews

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

Omega Speedmaster 38 Co Axial Chronometer Chronograph 38mm

Owners widely praise the Omega Speedmaster 38 Co Axial Chronometer Chronograph 38mm for its refined 38mm sizing, which offers a perfect fit on smaller wrists and an updated design compared to older models. The sunburst dial is considered excellent, and the automatic movement delivers chronometer accuracy of approximately -1 second per day. Some owners find the watch to be not too big, though a few note it can appear thicker than expected and describe it as "blingier" in person than stock photos suggest. A drawback mentioned is the pin-operated date change mechanism, which prevents on-the-go adjustments, and the lack of a screw-down crown. On balance, owners rate the Omega Speedmaster 38 Co Axial Chronometer Chronograph 38mm highly for its wearability and updated aesthetic on smaller wrists.

Rolex Cosmograph Daytona

Owners widely praise the Rolex Cosmograph Daytona's design and finishing, with many finding its proportions comfortable and wearable, though some note the sub-dial placement can appear slightly off. The watch is described as "absolutely gorgeous" and offering superior accuracy and finer finishing compared to alternatives, with one owner noting its 40mm case wears smaller and its bracelet is superior with an adjustable clasp. However, many owners question its value at current market prices, finding the retail price steep compared to other chronographs, and some suggest it is a better investment than a watch purchase. On balance, owners and reviewers rate the Rolex Cosmograph Daytona highly for its design, finishing, and wearability, despite concerns about its market value.

From video reviewers

The 18 ct yellow gold case and striking turquoise blue dial are key strengths. Reviewers did not reach a consensus on any weaknesses.

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