Jack Mason Pursuit ProvsMarathon GSAR (Government Search & Rescue) Diver's Automatic

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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.

Jack Mason Pursuit Pro at true scale

Pursuit Pro

Marathon GSAR (Government Search & Rescue) Diver's Automatic at true scale

GSAR (Government Search & Rescue) Diver's Automatic

Diameter

40mm

41mm

Lug-to-Lug

47mm

lowest

48mm

Thickness

12.5mm

lowest

14mm

Water Resistance

200m

300m

highest

Power Reserve

68h

n/a

MSRP

$1,399

lowest

$2,500

Movement

La Joux-Perret G101

Sellita SW200-1

Case

4 specs
Diameter
40mm
41mm
Thickness
12.5mm
14mm
Lug-to-Lug
47mm
48mm
Water Resistance
200m
300m

Crystal & Dial

1 specs
Dial Color
n/a
Anthracite

Movement

2 specs
Caliber
La Joux-Perret G101
Sellita SW200-1
Power Reserve
68h
0h

Pricing

1 specs
MSRP
$1,399
$2,500
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Reviews

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

Jack Mason Pursuit Pro

Owners widely praise the Jack Mason Pursuit Pro's robust build quality and value, with reviewers highlighting its scratch-resistant case, grippy 120-click ceramic bezel, and excellent nighttime legibility from its Lumicast lume. The watch features a La Joux-Perret G101 automatic movement regulated in-house to ±5 seconds per day. Some owners suggest other brands for perceived reliability, and one notes the lume is not as strong as a specific Seiko model. Overall, owners and reviewers rate the Jack Mason Pursuit Pro highly for its capable tool watch design and strong value proposition.

From video reviewers

The La Joux-Perret G101 movement with a 68-hour power reserve is a shared strength. Reviewers were split on the lume performance, with some finding it exceptionally bright and others describing it as underwhelming.

Marathon GSAR (Government Search & Rescue) Diver's Automatic

The Marathon GSAR (Government Search & Rescue) Diver's Automatic is widely praised as a versatile and well-made tool watch, with reviewers highlighting its legibility, utilitarian build, and comfort. Owners appreciate the tritium gas tubes for exceptional illumination in darkness, a feature noted as superior to some alternatives. The 41mm case size is considered ideal by some, though one owner found it wore tall and bumped on objects. While the watch is generally seen as a solid value for a Swiss-made tool watch, some owners have reported quality control issues requiring warranty service. Overall, owners and reviewers rate the Marathon GSAR (Government Search & Rescue) Diver's Automatic highly for its robust build and constant legibility from tritium.