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Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mmvsSeiko Astron GPS Solar 2025 Limited Edition

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What people say

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

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

Owners widely praise the Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm for its stunning dial, photorealistic moonphase with astronaut footprint, and buttery chronograph buttons. Reviewers and owners alike highlight the technically superior Co-Axial Master Chronometer automatic movement and impressive rate stability. Some owners find the 44.25mm size manageable, especially on larger wrists, and appreciate its distinctiveness compared to other Speedmasters. However, reviewers and several owners note that the 44.25mm x 16.85mm size can feel bold, gaudy, or thick, making it challenging to wear under shirt cuffs, and one reviewer found the crown guards sharp. On balance, owners and reviewers are captivated by the Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm's unique moonphase complication and overall aesthetic, despite some reservations about its substantial size.

Seiko Astron GPS Solar 2025 Limited Edition

The Seiko Astron GPS Solar 2025 Limited Edition is lauded for its advanced satellite timekeeping and perpetual calendar functionality, offering global time and location updates via GPS signals. Owners appreciate its well-built titanium or steel case, often featuring a ceramic bezel, and the unique asymmetrical design inspired by the 1983 Seiko 7A28 6000. However, its substantial 47mm size and 16.5mm thickness are frequently noted as drawbacks, with some finding it wears large and is difficult to fit under shirt sleeves. The perpetual calendar is limited to displaying only the date, and GPS signal reception requires a clear view of the sky, posing challenges indoors. The watch is priced around $2,900 and is limited to 3,000 pieces. Overall, owners and reviewers value the Seiko Astron GPS Solar 2025 Limited Edition for its cutting-edge technology and distinctive design, despite its considerable dimensions.

At a glance

18 of 29 specs differ
Diameter
Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm44.25mm
Astron GPS Solar 2025 Limited Edition43.4mm
Power Reserve
Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm60h
Astron GPS Solar 2025 Limited Edition
Water Resistance
Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm100m
Astron GPS Solar 2025 Limited Edition100m
MSRP
Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm$12,600
Astron GPS Solar 2025 Limited Edition$2,900

Full specifications

Case

6 specs
Diameter
44.25mm
43.4mm
Thickness
16.85mm
13.4mm
Lug-to-Lug
50mm
49.5mm
Lug Width
21mm
14mm
Material
Stainless Steel
Titanium
Finish
Steel

Crystal & Dial

4 specs
Crystal Shape
Domed
Curved
AR Coating
Super-clear coating
Dial Color
Black
Lume
None
LumiBrite on hands and index(es)

Movement

7 specs
Caliber
Omega 9904
5X83
Type
Automatic
Quartz
Power Reserve
60h
0h
Jewels
0
14
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Chronograph, Moonphase
None

Pricing

1 specs
MSRP
$12,600
$2,900
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