Side by side

Longines HYDROCONQUEST GMTvsYema Wristmaster Slim CMM.20

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

HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350
Wristmaster Slim CMM.20
YemaWristmaster Slim CMM.20
MSRP $2,117

At a glance

10 of 29 specs differ
Diameter
HYDROCONQUEST GMT41mm
Wristmaster Slim CMM.2039mm
Power Reserve
HYDROCONQUEST GMT40h
Wristmaster Slim CMM.2040h
Water Resistance
HYDROCONQUEST GMT300m
Wristmaster Slim CMM.20100m
MSRP
HYDROCONQUEST GMT$3,350
Wristmaster Slim CMM.20$2,117

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
41mm
39mm
Thickness
12.9mm
9mm
Lug-to-Lug
49.4mm
Lug Width
21mm
24mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Green
Black

Movement

1 specs
Caliber
L844.5
Yema CMM.20

Pricing

1 specs
MSRP
$3,350
$2,117

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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.

Longines HYDROCONQUEST GMT

Owners widely praise the Longines HYDROCONQUEST GMT for its excellent finishing, smooth winding action, and overall value, with some finding its build quality and colorways superior to higher-priced competitors. Reviewers and owners alike note its robustness as a traveler's dive watch with a true GMT movement. Some owners find the round markers at 6 and 9 disrupt dial symmetry, and the GMT hour markers are described as tiny and difficult to read. The date wheel can be mismatched on certain dial colors, and the bracelet clasp is noted as sharp by one reviewer. While some owners wish for a smaller case size, others find the 41mm comfortable. The bezel action is flagged as having bounce-back by one owner, though the brushed finish effectively hides wear. Overall, owners and reviewers rate the Longines HYDROCONQUEST GMT highly for its robust build and excellent value proposition.

Yema Wristmaster Slim CMM.20

The Yema Wristmaster Slim CMM.20 is widely praised for its compelling integrated bracelet design and comfortable 39mm wearability. Reviewers highlight its impressive value, featuring an in-house CMM.20 micro-rotor movement with a 70-hour power reserve, adjusted to -3/+7 seconds per day, all within a slim 9mm case. Some note the domed sapphire crystal can produce glare and the dial text is quite small. On balance, reviewers rate the Yema Wristmaster Slim CMM.20 highly for its integrated design and value proposition with a micro-rotor movement.

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