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.

Skymaster 38 Mkiii

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 specsCrystal & Dial
3 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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.
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.
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