Side by side

Sugess Seestern S434 Pro DivervsLongines HYDROCONQUEST GMT

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

Seestern S434 Pro Diver
SugessSeestern S434 Pro Diver
MSRP $249
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

13 of 29 specs differ
Diameter
Seestern S434 Pro Diver40mm
HYDROCONQUEST GMT41mm
Power Reserve
Seestern S434 Pro Diver40h
HYDROCONQUEST GMT40h
Water Resistance
Seestern S434 Pro Diver200m
HYDROCONQUEST GMT300m
MSRP
Seestern S434 Pro Diver$249
HYDROCONQUEST GMT$3,350

Full specifications

Case

7 specs
Diameter
40mm
41mm
Thickness
12mm
12.9mm
Lug-to-Lug
46mm
49.4mm
Lug Width
20mm
21mm
Material
Stainless Steel/Rose Gold
Stainless Steel
Water Resistance
200m
300m
Caseback
Engraved
Solid

Crystal & Dial

2 specs
Dial Color
2 Salmon
Green
Lume
Super-LumiNova BGW9
None

Movement

3 specs
Caliber
NH35
L844.5
Beat Rate
3 vph
28,800 vph
Complications
GMT, Chronograph, Moonphase, Date
None

Pricing

1 specs
MSRP
$249
$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.

Sugess Seestern S434 Pro Diver

Owners widely praise the Sugess Seestern S434 Pro Diver for its impressive finishing and craftsmanship at its price point, highlighting the applied indices that play with light, excellent BGW9 lume, and attractive color options. Specific positive notes include the domed sapphire crystal, short lug-to-lug, and on-the-fly clasp adjustment. However, some owners report quality control issues such as misaligned bezels or indices, while others with V2 models experience no such problems. Caveats include slight bezel back play, light AR coating on the crystal, and a clasp that could be smoother, with one owner desiring a color-matched date wheel. On balance, owners rate the Sugess Seestern S434 Pro Diver highly for its exceptional value and build quality, particularly the dial finishing and lume.

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.

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