Sheffield 1A SCR II BluevsSpinnaker 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.

1A SCR II Blue

Spence 300
Diameter
40mm
40mm
Lug-to-Lug
48mm
48mm
Thickness
13mm
11.5mm
lowest
Water Resistance
200m
300m
highest
MSRP
$278
lowest
$650
Movement
Seiko NH35
Seiko NH35
Case
3 specsCrystal & Dial
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Sheffield 1A SCR II Blue for its excellent finishing and vibrant blue dial, with one owner highlighting the fantastic lume and domed crystal as standout features. The watch is considered a great value, offering quality comparable to higher-priced alternatives. One owner notes the bezel action could be crisper. Overall, owners rate the Sheffield 1A SCR II Blue highly for its impressive finishing and dial quality at an affordable price.
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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