Oceanica Watch Co. ThreshervsSheffield 1A 40mm
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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.

Thresher

1A 40mm
Diameter
40mm
40mm
Lug-to-Lug
47mm
lowest
48mm
Thickness
12mm
lowest
13mm
Water Resistance
200m
200m
MSRP
$300
$228
lowest
Movement
Seiko NH35
Seiko NH35
Case
2 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Oceanica Watch Co. Thresher for its impressive specifications and value, noting its strong lume and sapphire crystal. One owner reports an issue with the internal bezel on the first generation, which could rotate even when the crown was secured. The Oceanica Thresher is priced at $250.00, with some commenters observing that its font on the insert and indices resemble those found on the IWC Aquatimer. Overall, owners rate the Oceanica Watch Co. Thresher highly for its robust specifications and value at its price point.
Owners widely praise the Sheffield 1A 40mm for its superb quality, sturdiness, and amazing price, with particular appreciation for its blue dial and strong lume. The watch features a 40mm steel case and a sapphire crystal. One owner notes the bezel action could be crisper. On balance, owners rate the Sheffield 1A 40mm highly for its exceptional value and build quality at the price point.
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