Maen Skymaster 38 MkiiivsNivada Grenchen Chronomaster Valjoux

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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

Nivada Grenchen Chronomaster Valjoux at true scale

Chronomaster Valjoux

Diameter

38mm

38mm

Lug-to-Lug

n/a

46.5mm

Thickness

13.4mm

12.9mm

lowest

Water Resistance

100m

100m

Power Reserve

n/a

48h

MSRP

$1,679

lowest

$5,000

Movement

Sellita SW510

Valjoux 23

Case

6 specs
Thickness
13.4mm
12.95mm
Lug-to-Lug
n/a
46.5mm
Lug Width
n/a
n/a
Material
316L Stainless Steel
Stainless Steel
Finish
n/a
Brushed + Polished
Caseback
n/a
316L Steel Silver Color Open Case back with Sapphire Glass

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
M6.1.1
Black
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Sellita SW510
Valjoux 23
Type
Automatic
Manual
Power Reserve
0h
48h
Complications
None
GMT, Chronograph

Pricing

1 specs
MSRP
$1,679
$5,000
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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.

Nivada Grenchen Chronomaster Valjoux

The Nivada Grenchen Chronomaster Valjoux is praised for its desirable vintage aesthetic and comfortable wearability, with reviewers highlighting its flat-top pump pushers and drilled lug holes. Owners note the Aventurine Blue variant's unique starry dial and world time bezel. Some find the sub-dials small and difficult to read, and a reviewer points out that the faux patina on the dial indexes may appear too yellow. The watch features a manual-wind Valjoux 23 movement and a 38mm case. Overall, owners and reviewers appreciate the Nivada Grenchen Chronomaster Valjoux for its faithful vintage design and practical features at its price point.