Side by side

Boldr Globetrotter GMTvsFormex Reef 39.5 mm

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

Globetrotter GMT
BoldrGlobetrotter GMT
MSRP $469
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

11 of 29 specs differ
Diameter
Globetrotter GMT40mm
Reef 39.5 mm39.5mm
Power Reserve
Globetrotter GMT40h
Reef 39.5 mm56h
Water Resistance
Globetrotter GMT200m
Reef 39.5 mm300m
MSRP
Globetrotter GMT$469
Reef 39.5 mm$2,230

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
40mm
39.5mm
Thickness
12.7mm
11mm
Lug-to-Lug
48mm
45.5mm
Lug Width
20mm
22mm
Water Resistance
200m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
GMT Banff
Bahama Blue

Movement

2 specs
Caliber
Seiko NH34 GMT
Sellita SW300-1
Power Reserve
40h
56h

Pricing

1 specs
MSRP
$469
$2,230

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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.

Boldr Globetrotter GMT

The Boldr Globetrotter GMT is praised for its legibility and finishing, featuring applied Super-LumiNova indices and sword hands on a matte black or sunburst blue dial. Reviewers highlight the ceramic bezel's sharp city markings and tight, smooth ratcheting action. The 44mm 316L stainless steel case exhibits a non-traditional design with radial and vertical brushing.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

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