Maen Skymaster 38 MKIIIvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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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

Seiko Prospex SPEEDTIMER Mechanical Chronograph at true scale

Prospex SPEEDTIMER Mechanical Chronograph

Diameter

38mm

42mm

Lug-to-Lug

n/a

49.5mm

Thickness

13.4mm

lowest

14.6mm

Water Resistance

100m

100m

Power Reserve

n/a

45h

MSRP

$1,679

lowest

$2,500

Movement

Sellita SW510

Seiko 8R48

Case

5 specs
Diameter
38mm
42mm
Thickness
13.4mm
14.6mm
Lug-to-Lug
n/a
49.5mm
Lug Width
n/a
20mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

5 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
M6.1.1
n/a
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW510
Seiko 8R48
Power Reserve
0h
45h
Jewels
0
34

Pricing

1 specs
MSRP
$1,679
$2,500
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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.

Seiko Prospex SPEEDTIMER Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design and clean, balanced dial layout, enhanced by an external tachymeter bezel. Reviewers note the adequate caliber 8R48 movement, which features a vertical clutch and column wheel with MEMS technology for durability and precision. The refined bracelet offers improved comfort, and the overall package is considered good value for a well-designed chronograph with an in-house movement. Points to consider include the 4:30 date window and a thickness of 14.6mm, while the 45-hour power reserve is an area for potential improvement. On balance, reviewers rate the Seiko Prospex SPEEDTIMER Mechanical Chronograph highly for its attractive design and solid chronograph functionality at its price point.

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