Certina DS-1 Chrono AutovsOmega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm

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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.

Certina DS-1 Chrono Auto at true scale

DS-1 Chrono Auto

Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm at true scale

Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm

Diameter

42mm

44.3mm

Lug-to-Lug

49.7mm

lowest

50mm

Thickness

14.3mm

lowest

16.9mm

Water Resistance

100m

100m

Power Reserve

n/a

60h

MSRP

$2,164

lowest

$42,400

Movement

Tissot Valjoux A05.231

Omega 9904

Case

5 specs
Diameter
42mm
44.25mm
Thickness
14.32mm
16.85mm
Lug-to-Lug
49.68mm
50mm
Material
Stainless Steel
18kt Sedna Gold
Finish
n/a
Steel

Crystal & Dial

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

Movement

5 specs
Caliber
Tissot Valjoux A05.231
Omega 9904
Power Reserve
0h
60h
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Chronograph, Moonphase

Pricing

1 specs
MSRP
$2,164
$42,400
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Reviews

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

Certina DS-1 Chrono Auto

Owners widely praise the Certina DS-1 Chrono Auto for its elegant design, value, and 100m water resistance. Reviewers highlight its handsome, sober tool-like demeanor and good build quality from Swatch Group. One owner notes the watch is a dressier option than a dive watch, appreciating its Super-LumiNova and AR sapphire crystal. The 42mm case is described as not feeling too large due to a relatively thin profile. Some owners report the included leather strap can be uncomfortable and the clasp sharp. One reviewer noted the date window on a similar model appeared disproportionate and the crystal attracted glare due to a lack of AR coating, though other sources mention AR sapphire crystal. Accuracy figures vary, with one owner seeing +4s/day and another noting the Valjoux A05.231 movement. Overall, owners and reviewers rate the Certina DS-1 Chrono Auto highly for its handsome design and strong value proposition.

Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm

The Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm is widely praised for its detailed and photorealistic moonphase complication, featuring a boot print Easter egg, and its exceptional finishing, including a ceramic bezel and sun-brushed dial. Owners and reviewers consistently highlight the beauty of the complication and the overall build quality. However, the watch's 44.25mm case size and considerable thickness (around 16.85mm to 17mm) are frequently noted as making it wear large and potentially challenging to fit under dress cuffs, with some suggesting it feels "chunky" or like a "beast." One reviewer found the crown guards sharp when winding and the crown difficult to pull out. On balance, owners and reviewers appreciate the Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm for its stunning moonphase detail and high-end finishing, despite its substantial size.

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