Nivada Grenchen Chronomaster ManualvsOmega Speedmaster 38 Co Axial Chronometer Chronograph 38mm

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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.

Nivada Grenchen Chronomaster Manual at true scale

Chronomaster Manual

Omega Speedmaster 38 Co Axial Chronometer Chronograph 38mm at true scale

Speedmaster 38 Co Axial Chronometer Chronograph 38mm

Diameter

38mm

38mm

Lug-to-Lug

n/a

44.9mm

Thickness

14.6mm

lowest

14.7mm

Water Resistance

100m

100m

Power Reserve

45h

52h

highest

MSRP

$1,975

lowest

$8,700

Movement

Valjoux 7733

Omega 3330

Case

5 specs
Thickness
14.55mm
14.7mm
Lug-to-Lug
n/a
44.9mm
Lug Width
20mm
18mm
Material
Stainless Steel
Steel & Yellow Gold
Finish
Brushed + Polished
Steel

Crystal & Dial

3 specs
Crystal Shape
n/a
Domed
Dial Color
White
Silver
Lume
x1
None

Movement

6 specs
Caliber
Valjoux 7733
Omega 3330
Type
Manual
Automatic
Power Reserve
45h
52h
Hacking
No
Yes
Hand-winding
No
Yes
Complications
GMT, Chronograph
Chronograph

Pricing

1 specs
MSRP
$1,975
$8,700
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Reviews

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

Nivada Grenchen Chronomaster Manual

Owners praise the Nivada Grenchen Chronomaster Manual as a well-sized mechanical chronograph without a module movement. One owner notes the watch sits high on the wrist due to its automatic caseback, leading to some regret. Overall, owners appreciate the Chronomaster Manual as a capable manual-wind chronograph.

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.