Side by side

Maen Skymaster 38 MKIIIvsLongines HYDROCONQUEST GMT

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
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

12 of 29 specs differ
Diameter
Skymaster 38 MKIII38mm
HYDROCONQUEST GMT43mm
Power Reserve
Skymaster 38 MKIII40h
HYDROCONQUEST GMT72h
Water Resistance
Skymaster 38 MKIII100m
HYDROCONQUEST GMT300m
MSRP
Skymaster 38 MKIII$1,679
HYDROCONQUEST GMT$3,350

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
38mm
43mm
Thickness
13.4mm
12.9mm
Lug-to-Lug
52mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
M6.1.1
Green

Movement

2 specs
Caliber
Sellita SW510mb
L844.5
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,679
$3,350

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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.

Longines HYDROCONQUEST GMT

The Longines HYDROCONQUEST GMT is widely praised for its excellent finishing, with some comparing it favorably to higher-end dive watches, and its attractive blue sunburst dial. Owners note its practical true GMT complication and robust 41mm brushed case with ceramic bezel, powered by a movement offering a 72-hour power reserve. Some in the community find the round markers at 6 and 9 disrupt dial symmetry, though others appreciate this design element. A common criticism is the difficulty in reading the tiny GMT text beneath the hour markers, and the absence of a quick date adjust feature. One owner reported a sharp feeling on the bracelet's clasp, and another flagged mismatched date wheel colors on certain dial variants. Overall, owners and reviewers consider the Longines HYDROCONQUEST GMT a strong value proposition for a traveler's dive watch, citing its build quality and GMT functionality as key strengths.

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