Side by side

Baltic Aquascaphe MK2vsGrand Seiko SBGA427

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Aquascaphe MK2
BalticAquascaphe MK2
MSRP $680
SBGA427
Grand SeikoSBGA427
MSRP $5,800

At a glance

12 of 29 specs differ
Diameter
Aquascaphe MK237mm
SBGA42739mm
Power Reserve
Aquascaphe MK242h
SBGA42772h
Water Resistance
Aquascaphe MK2200m
SBGA427100m
MSRP
Aquascaphe MK2$680
SBGA427$5,800

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
37mm
39mm
Thickness
12.9mm
12.3mm
Lug-to-Lug
45mm
46.8mm
Lug Width
20mm
19mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
Dial Color
Blue
Black
Lume
BGW9
None

Movement

3 specs
Caliber
Miyota 9039
9R65
Type
Automatic
Spring Drive
Power Reserve
42h
72h

Pricing

1 specs
MSRP
$680
$5,800

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What people say

Owners + reviewers, side by side

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

Baltic Aquascaphe MK2

The Baltic Aquascaphe MK2 is widely praised for its refined case design, improved lume with applied markers, and added crown guards, presenting a sharper and more purposeful neo-retro dive watch. Owners and reviewers highlight its updated technical and design elements, including a fully graduated sapphire bezel and two case size options (37mm and 39.5mm), all while maintaining a reasonable price point. Some find the design derivative or less cohesive than its predecessor, with one owner noting the long, straight lugs as a significant drawback, while others appreciate the dial texture and case profile. The Baltic Aquascaphe MK2 is powered by the Miyota 9039 movement with a 42-hour power reserve and offers 200m water resistance. Overall, owners and reviewers rate the Baltic Aquascaphe MK2 highly for its value and contemporary updates to a tool-watch heritage.

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.

Grand Seiko SBGA427

Grand Seiko SBGA427 owners widely praise its extensive Zaratsu polishing and the "hall of mirrors" effect created by its diamond-cut indexes, complemented by a subtle, reeded dial and a striking green seconds hand. The 39mm case is noted for its comfortable, tapered bracelet, and the 9R65 Spring Drive movement is visible through the caseback. Some owners report the highly polished Zaratsu finish is prone to scuffs and scratches, with one mentioning a scratch near 1 o'clock. The Grand Seiko SBGA427 sold for $3750. Overall, owners rate the Grand Seiko SBGA427 highly for its exceptional finishing and the unique visual appeal of its dial and indexes.

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