Seaholm OffshorevsSquale 1521
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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.

Offshore

1521
Diameter
41mm
42mm
Thickness
n/a
12.5mm
Water Resistance
200m
500m
highest
Power Reserve
38h
38h
MSRP
$825
lowest
$1,265
Movement
Sellita SW200-1
Sellita SW200-1
Case
6 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 Seaholm Offshore for its execution, noting attention to detail on the brushed dial, a classic no-crown-guard aesthetic, and a beautiful dial color. The domed crystal and solid, quality feel are also frequently highlighted, with one owner finding it a great value. The bracelet's simple screw-link sizing is a practical plus. Seaholm Offshore watches are built to meet ISO 6425 water resistance specifications and offer significant shock and magnetism protection through proprietary components. Overall, owners rate the Seaholm Offshore highly for its detailed finishing and quality feel at its price point.
Owners widely praise the Squale 1521 for its classic look and robust build, with specific mentions of its wearable 12.5mm thickness and refined case finishing. The 42mm case is noted by some to wear smaller, closer to 40mm, due to short lugs, feeling solid without being too large. However, opinions on the bracelet vary, with some finding it too flashy or stiff, and one owner reported moisture ingress after a shower due to a loose case back. The crown can be difficult to operate due to deep integration, and the 38-hour power reserve is considered old-school but reliable. Overall, owners rate the Squale 1521 highly for its classic design and wearability, despite some reservations about the bracelet and crown.
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