Jack Mason Pursuit ProvsSpinnaker Spence 300

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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

Spinnaker Spence 300 at true scale

Spence 300

Diameter

40mm

40mm

Lug-to-Lug

47mm

lowest

48mm

Thickness

12.5mm

11.5mm

lowest

Water Resistance

200m

300m

highest

Power Reserve

68h

n/a

MSRP

$1,399

$650

lowest

Movement

La Joux-Perret G101

Seiko NH35

Case

3 specs
Thickness
12.5mm
11.5mm
Lug-to-Lug
47mm
48mm
Water Resistance
200m
300m

Crystal & Dial

1 specs
Dial Color
n/a
Aquamarine

Movement

2 specs
Caliber
La Joux-Perret G101
Seiko NH35
Power Reserve
68h
0h

Pricing

1 specs
MSRP
$1,399
$650
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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.

Spinnaker Spence 300

Owners widely praise the Spinnaker Spence 300 for its slim 10.9mm case and 40mm diameter, offering a comfortable and versatile wear. Reviewers and owners alike highlight its value, with some seeing it as a budget alternative to more expensive dive watches. The watch features a Seiko NH35 automatic movement and 300m water resistance. However, some community members find the dial printing and bracelet finishing to be less refined, and a few suggest other brands offer better value at similar price points. On balance, owners and reviewers rate the Spinnaker Spence 300 highly for its impressive case dimensions and overall value proposition.

From video reviewers

The watch's thin 10.9mm profile for a 300m diver is a key strength. No shared weakness was identified.