Side by side

Jack Mason Pursuit ProvsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

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

What people say

Owners + reviewers, side by side

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 build quality for its price point and its impressive Lumicast Super-LumiNova lume, which provides excellent nighttime legibility. Reviewers highlight its scratch-resistant case, grippy 120-click ceramic bezel, and the La Joux-Perret G101 automatic movement, regulated in-house to ±5 seconds per day. Some owners suggest other brands for perceived greater reliability, and one notes the lume is not as strong as a Seiko Turtle's. The Jack Mason Pursuit Pro is priced at $1,399. Overall, owners and reviewers rate the Jack Mason Pursuit Pro highly for its robust tool watch design and excellent lume at the price.

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.

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition is praised for its beautiful design and refinement over previous models, featuring vertically textured glacier-inspired dials. Owners, however, consider the €1500 RRP too high, suggesting a price closer to €900-€1000, noting the aluminum bezel insert instead of ceramic. Some owners report the 6R movement runs slow. On balance, owners find the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition beautiful and a refinement, but the price and aluminum bezel are points of contention.

At a glance

13 of 29 specs differ
Diameter
Pursuit Pro40mm
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
Power Reserve
Pursuit Pro68h
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
Water Resistance
Pursuit Pro200m
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
MSRP
Pursuit Pro$1,399
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Full specifications

Case

5 specs
Category
Diver
Diameter
40mm
42.7mm
Thickness
12.5mm
13.2mm
Lug-to-Lug
47mm
46.4mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
La Joux-Perret G101
6R35
Power Reserve
68h
70h
Jewels
0
24

Pricing

1 specs
MSRP
$1,399
$1,350
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