Side by side

Hamilton Khaki Navy BeLOWZERO Auto TitaniumvsSpinnaker Dumas GMT

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

Khaki Navy BeLOWZERO Auto Titanium
HamiltonKhaki Navy BeLOWZERO Auto Titanium
MSRP $2,175
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

11 of 29 specs differ
Diameter
Khaki Navy BeLOWZERO Auto Titanium46mm
Dumas GMT44mm
Power Reserve
Khaki Navy BeLOWZERO Auto Titanium80h
Dumas GMT40h
Water Resistance
Khaki Navy BeLOWZERO Auto Titanium1,000m
Dumas GMT300m
MSRP
Khaki Navy BeLOWZERO Auto Titanium$2,175
Dumas GMT$399

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
46mm
44mm
Thickness
15.7mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
24mm
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
1000m
300m

Crystal & Dial

1 specs
Dial Color
Black
Blue

Movement

2 specs
Caliber
H-10
Seiko NH34A
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,175
$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.

Hamilton Khaki Navy BeLOWZERO Auto Titanium

The Hamilton Khaki Navy BeLOWZERO Auto Titanium is widely noted for its substantial 46mm titanium case, with some owners finding it large and heavy, particularly on the bracelet, though others find the titanium version manageable and appreciate its sporty casual wearability. Readability in low light is a concern, with the lume described as not good. The watch features 1000m water resistance and an 80-hour power reserve, with a stealthy black dial and a distinctive arrow-tipped seconds hand. On balance, owners and reviewers highlight its robust build and impressive water resistance as key strengths for a sporty casual watch.

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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