Wolbrook JetFlyer Automatic ChronographvsYema Flygraf Navigator

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Wolbrook JetFlyer Automatic Chronograph at true scale

JetFlyer Automatic Chronograph

Yema Flygraf Navigator at true scale

Flygraf Navigator

Diameter

38mm

40mm

Lug-to-Lug

46mm

n/a

Thickness

12.1mm

lowest

13.9mm

Water Resistance

100m

100m

MSRP

$845

lowest

$1,199

Movement

Jeambrun PS 6402

Automatic

Case

3 specs
Diameter
38mm
40mm
Thickness
12.1mm
13.9mm
Lug-to-Lug
46mm
n/a

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Black
Steel

Movement

1 specs
Caliber
Jeambrun PS 6402
n/a

Pricing

1 specs
MSRP
$845
$1,199
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Wolbrook JetFlyer Automatic Chronograph

Owners widely praise the Wolbrook JetFlyer Automatic Chronograph for its solid value, durable and reliable construction, and appealing visual design featuring a domed sapphire crystal and fully brushed finish. The case finishing is noted as very nice with great detailing on the bezel and dial, and the bezel action is described as great with accurate alignment. However, some owners report the watch feels top-heavy and wears larger than its 38mm case, with one noting a thickness of 14mm or 14.3mm. Timekeeping varied, with one owner experiencing degradation to +2 minutes per day after the first week. Overall, owners rate the Wolbrook JetFlyer Automatic Chronograph highly for its robust build and aesthetic appeal at its price point.

Yema Flygraf Navigator

Owners widely report that the Yema Flygraf Navigator offers a great design and lume, with some finding its quality excellent for the price. However, multiple owners and community members consistently flag concerns regarding quality control and customer service, with one owner noting a past warranty issue and another experiencing a malfunctioning chronograph subdial requiring repair. On balance, owners rate the Yema Flygraf Navigator positively for its design and value, though persistent quality control concerns temper overall enthusiasm.

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