Side by side

Maen Skymaster 38 MKIIIvsGrand Seiko SBGM221

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Skymaster 38 MKIII
MaenSkymaster 38 MKIII
MSRP $1,679
SBGM221
Grand SeikoSBGM221
MSRP $5,400

At a glance

13 of 29 specs differ
Diameter
Skymaster 38 MKIII38mm
SBGM22139.5mm
Power Reserve
Skymaster 38 MKIII40h
SBGM22172h
Water Resistance
Skymaster 38 MKIII100m
SBGM22130m
MSRP
Skymaster 38 MKIII$1,679
SBGM221$5,400

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
38mm
39.5mm
Thickness
13.4mm
13.7mm
Lug-to-Lug
46.9mm
Lug Width
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
30m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
M6.1.1
Black

Movement

2 specs
Caliber
Sellita SW510mb
9S66
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,679
$5,400

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What people say

Owners + reviewers, side by side

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 offers a premium feel with a sharp, legible dial and well-executed applied markers. Reviewers note the sweet winding action and the vintage-inspired brown sunburst dial with dauphine hands and lollipop register pointers. The watch is powered by a manual-wind Sellita SW510Mb movement with a 63-hour power reserve. Accuracy figures vary, with one reviewer reporting +7 seconds per day and another stating a tolerance of +/-15 seconds per day. On balance, owners and reviewers appreciate the Maen Skymaster 38 MKIII for its refined vintage-inspired design and compact dimensions 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.

Grand Seiko SBGM221

Grand Seiko SBGM221 is widely praised for its exceptional dial finish, highly polished hands and indices, and elegant design. Owners consistently highlight the stunning craftsmanship, with specific mention of the up to 11 hand-polished facets on its rectangular markers. The reliable 9S66 movement is noted for its 72-hour power reserve and true GMT functionality, tested beyond Chronometer specifications. Some enthusiasts desire a bidirectional 24-hour bezel, which the Grand Seiko SBGM221 lacks, and its 13.7mm thickness and 19mm lug width are noted as potential limitations. On balance, owners rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant, comfortable design.

From video reviewers

The SBGM221 is praised for its value within the Grand Seiko lineup. The lug width is cited as a weakness.

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