Baltic Aquascaphe MK2vsSeiko 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.

Baltic Aquascaphe MK2 at true scale

Aquascaphe MK2

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

37mm

40mm

Lug-to-Lug

45mm

lowest

46.4mm

Thickness

12.9mm

lowest

13mm

Water Resistance

200m

300m

highest

Power Reserve

42h

72h

highest

MSRP

$680

lowest

$1,400

Movement

Miyota 9039

Seiko 6R55

Case

4 specs
Diameter
37mm
40mm
Thickness
12.9mm
13mm
Lug-to-Lug
45mm
46.4mm
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Blue
n/a
Lume
BGW9
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
Seiko 6R55
Power Reserve
42h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$680
$1,400
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Reviews

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

Baltic Aquascaphe MK2

Owners widely praise the Baltic Aquascaphe MK2 for its refined case design, improved finishing, and value, with many highlighting the added crown guards and Maxi Dial as significant upgrades. Reviewers note the collection's contemporary updates, including a reworked bezel and applied markers, striking a balance between modern practicality and vintage aesthetics. Some owners find the long, straight lugs a drawback, and one owner reported disappointing accuracy averaging +10.5 seconds per day. Overall, owners and reviewers rate the Baltic Aquascaphe MK2 highly for its enhanced design and build quality at its price point.

From video reviewers

The Baltic Aquascaphe MK2 features 3D Super-LumiNova indexes for improved legibility. A notable weakness is the lack of lume brightness. Reviewers disagree on the optimal case size, with one reviewer noting a 41mm stainless steel case is comfortable for everyday wear, while the other mentions 37mm and 39.5mm case sizes are available.

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

The Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition is praised for its comfortable MarineMaster case design and attractive wave-patterned silvery-white dial with a grey bezel insert. Owners note the 40mm case and 300m water resistance. Some owners criticize the 6R55 movement's accuracy, reporting deviations of +25/-15 seconds per day, and find the watch expensive for a limited edition with a large production run. Overall, owners find the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition a comfortable and attractive watch, though some question its value proposition due to accuracy concerns and its "limited" status.

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