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

14 of 29 specs differ
Diameter
Seestern S434 Pro Diver40mm
HYDROCONQUEST GMT43mm
Power Reserve
Seestern S434 Pro Diver40h
HYDROCONQUEST GMT72h
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
43mm
Thickness
12mm
12.9mm
Lug-to-Lug
46mm
52mm
Lug Width
20mm
22mm
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

4 specs
Caliber
NH35
L844.5
Beat Rate
3 vph
28,800 vph
Power Reserve
40h
72h
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

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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