Side by side

Spinnaker Dumas GMTvsBoldr Venture GMT

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
Venture GMT
BoldrVenture GMT
MSRP $299

At a glance

12 of 29 specs differ
Diameter
Dumas GMT44mm
Venture GMT38mm
Power Reserve
Dumas GMT40h
Venture GMT40h
Water Resistance
Dumas GMT300m
Venture GMT200m
MSRP
Dumas GMT$399
Venture GMT$299

Full specifications

Case

6 specs
Diameter
44mm
38mm
Thickness
15mm
14mm
Lug-to-Lug
48mm
44mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Blue
Black
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Seiko NH34A
Ronda 515
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$399
$299

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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.

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.

Boldr Venture GMT

Owners widely praise the Boldr Venture GMT for its lightweight titanium case and bracelet, utilitarian GMT function, and 200m water resistance, with many finding it a comfortable daily driver. The watch's faceted bracelet attachment, sapphire crystal, and attractive dials are also frequently highlighted, though some owners note the lume's visibility is hampered by blending numbers. Accuracy varies, with one owner reporting it runs 6 seconds fast over 25 days, while another finds the Miyota movement basic. Some users would prefer a 4 o'clock crown and a date window, and the clasp safety can be loose. Overall, owners rate the Boldr Venture GMT highly for its robust titanium build and practical GMT functionality at its price point.

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