Side by side

Spinnaker Bradner GMTvsGruppo Gamma Field III GMT

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

12 of 29 specs differ
Diameter
Bradner GMT42mm
Field III GMT40mm
Power Reserve
Bradner GMT40h
Field III GMT41h
Water Resistance
Bradner GMT180m
Field III GMT200m
MSRP
Bradner GMT$299
Field III GMT$459

Full specifications

Case

5 specs
Diameter
42mm
40mm
Thickness
15mm
14mm
Lug-to-Lug
50mm
48.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
180m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko NH34A
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$299
$459

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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 Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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