Maen Skymaster 38 MkiiivsOmega Speedmaster Calibre 321 Chronograph 39 7mm

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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.

Maen Skymaster 38 Mkiii at true scale

Skymaster 38 Mkiii

Omega Speedmaster Calibre 321 Chronograph 39 7mm at true scale

Speedmaster Calibre 321 Chronograph 39 7mm

Diameter

38mm

39.7mm

Lug-to-Lug

n/a

48mm

Thickness

13.4mm

lowest

13.7mm

Water Resistance

100m

highest

50m

Power Reserve

n/a

55h

MSRP

$1,679

lowest

$17,300

Movement

Sellita SW510

Omega 321

Case

7 specs
Diameter
38mm
39.7mm
Thickness
13.4mm
13.7mm
Lug-to-Lug
n/a
48mm
Lug Width
n/a
19mm
Material
316L Stainless Steel
Stainless Steel
Finish
n/a
Steel
Water Resistance
100m
50m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
n/a
Domed
Dial Color
M6.1.1
Black

Movement

6 specs
Caliber
Sellita SW510
Omega 321
Type
Automatic
Manual
Power Reserve
0h
55h
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Chronograph

Pricing

1 specs
MSRP
$1,679
$17,300
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Reviews

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

Maen Skymaster 38 Mkiii

The Maen Skymaster 38 MKIII is praised for its refined case, impressive fit and finish, and compact 38mm size, which is considered a positive for a modern mechanical chronograph. Reviewers highlight its clean dial, sharp legibility, and well-executed applied markers, with one noting a brown sunburst dial evoking vintage tropical effects. The winding action is described as sweet, and the watch is powered by a Sellita SW510Mb manual-wind movement. Accuracy figures vary, with one source reporting an average of +7 seconds per day and another stating a tolerance of +/-15 seconds per day, and both note a 63-hour power reserve. Overall, reviewers rate the Maen Skymaster 38 MKIII highly for its vintage-inspired design and premium feel at its price point.

From video reviewers

The 38mm case size is a key strength for the Maen Skymaster 38 MKIII. Reviewers noted the excellent quality-price ratio for a Swiss-made chronograph.

Omega Speedmaster Calibre 321 Chronograph 39 7mm

Owners and reviewers widely praise the Omega Speedmaster Calibre 321 Chronograph 39.7mm for its historical fidelity to the 105.003, its superior finishing, and the tactile feel of its pushers and bracelet, with some considering it the ultimate Speedmaster. The movement's copper-plated finish and column-wheel chronograph mechanism are highlighted as distinguishing features. However, its high price, limited availability, and lack of hacking, anti-magnetism, and crown guards are noted drawbacks. Accuracy varies, with one owner reporting +20 seconds per day out of the box, while others cite better performance. On balance, owners and reviewers rate the Omega Speedmaster Calibre 321 Chronograph 39.7mm highly for its blend of vintage aesthetic, superb movement finishing, and comfortable wearability, justifying its premium price for enthusiasts.

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