Side by side

Orient RA-AC0K Diver WatchvsSpinnaker Dumas 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
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

15 of 29 specs differ
Diameter
RA-AC0K Diver Watch43.4mm
Dumas GMT44mm
Power Reserve
RA-AC0K Diver Watch40h
Dumas GMT40h
Water Resistance
RA-AC0K Diver Watch200m
Dumas GMT300m
MSRP
RA-AC0K Diver Watch$455
Dumas GMT$399

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
43.4mm
44mm
Thickness
12.8mm
15mm
Lug-to-Lug
51mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

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

Movement

4 specs
Caliber
F6722
Seiko NH34A
Beat Rate
21,600 vph
28,800 vph
Jewels
22
25
Complications
Date
None

Pricing

1 specs
MSRP
$455
$399

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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.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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