Newmark 71 SportsvsSeiko Prospex Sea
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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.

71 Sports

Prospex Sea
Diameter
38mm
41.3mm
Lug-to-Lug
47mm
lowest
48.2mm
Thickness
13mm
12.5mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
42h
72h
highest
MSRP
$475
lowest
$1,100
Movement
Miyota 9039
Seiko 6R55
Case
5 specsCrystal & Dial
3 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The bezel action is a standout strength, described as buttery smooth with 60 clicks. The bracelet is also highlighted as a brilliant feature.
Owners and reviewers widely praise the Seiko Prospex Sea for its robust build quality and fair price, with many noting its comfortable silicone strap. Some owners find the watch's size, thickness, and weight to be uncomfortable for smaller wrists, while others consider the size perfect. The consensus is that the Seiko Prospex Sea offers excellent value and build quality for its price.
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