Side by side

Orient RA-AC0K Diver WatchvsLongines HYDROCONQUEST GMT

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

RA-AC0K Diver Watch
OrientRA-AC0K Diver Watch
MSRP $455
HYDROCONQUEST GMT
LonginesHYDROCONQUEST GMT
MSRP $3,350

At a glance

14 of 29 specs differ
Diameter
RA-AC0K Diver Watch43.4mm
HYDROCONQUEST GMT43mm
Power Reserve
RA-AC0K Diver Watch40h
HYDROCONQUEST GMT72h
Water Resistance
RA-AC0K Diver Watch200m
HYDROCONQUEST GMT300m
MSRP
RA-AC0K Diver Watch$455
HYDROCONQUEST GMT$3,350

Full specifications

Case

4 specs
Diameter
43.4mm
43mm
Thickness
12.8mm
12.9mm
Lug-to-Lug
51mm
52mm
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Green
Indices
Applied

Movement

5 specs
Caliber
F6722
L844.5
Beat Rate
21,600 vph
28,800 vph
Power Reserve
40h
72h
Jewels
22
25
Complications
Date
None

Pricing

1 specs
MSRP
$455
$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.

Orient RA-AC0K Diver Watch

Owners widely praise the Orient RA-AC0K Diver Watch for exceeding expectations and being a "real" watch. The mechanical movement is noted for keeping great time, running within a handful of seconds fast per day, with some owners considering Orient's budget movements among the best for accuracy. Overall, owners rate the Orient RA-AC0K Diver Watch highly for its surprising quality and reliable timekeeping at its price point.

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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