Squale Squale 50 Atmos Profondo Swiss Diver with Blue Ombre DialvsSeiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

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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.

Squale Squale 50 Atmos Profondo Swiss Diver with Blue Ombre Dial at true scale

Squale 50 Atmos Profondo Swiss Diver with Blue Ombre Dial

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition at true scale

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

Diameter

42mm

42mm

Lug-to-Lug

n/a

48.6mm

Thickness

n/a

13.3mm

Water Resistance

500m

highest

300m

Power Reserve

n/a

72h

MSRP

$1,448

lowest

$1,750

Movement

Sellita SW200-1

Seiko 6R54

Case

4 specs
Thickness
n/a
13.3mm
Lug-to-Lug
n/a
48.6mm
Lug Width
n/a
20mm
Water Resistance
500m
300m

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
Seiko 6R54
Power Reserve
0h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$1,448
$1,750
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Squale 50 Atmos Profondo Swiss Diver with Blue Ombre Dial

Owners and reviewers praise the Islander Squale 50 Atmos Profondo Swiss Diver Watch with Blue Ombre Dial #1521PROFD.SQ20B for its blue-to-black ombre dial, bead-blasted case, and excellent legibility. The watch is noted for wearing smaller than its specifications suggest, with one reviewer highlighting its comfortable 40.4mm wearability. Some criticism exists regarding the bezel's light action, which can lead to accidental movement, and the crown's grip and feel are described as cumbersome and imprecise. Overall, owners and reviewers highly regard the Islander Squale 50 Atmos Profondo Swiss Diver Watch with Blue Ombre Dial #1521PROFD.SQ20B for its attractive dial and comfortable wearability.

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

Owners find the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition very pretty with an excellent, non-bulky 42mm case. Reviewers note its upgraded clasp with a new diving suit extension system and a wave-patterned silvery-white dial. However, the price of €1900 for a Seiko 6R54 movement with accuracy of +25/-15 seconds per day is considered too expensive by some, and the 6000-unit production run is not seen as truly limited. On balance, owners and reviewers find the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition aesthetically pleasing with a comfortable case, though its value proposition is debated due to the movement's performance and price.