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.

Pursuit Pro

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 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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.
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.
The watch's thin 10.9mm profile for a 300m diver is a key strength. No shared weakness was identified.
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