Side by side

Baltic Aquascaphe MK2vsSinn U1 S L

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

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.

Sinn U1 S L

The Sinn U1 S L is widely praised for its intense, full-lume dial, a feature described as new technology that glows brightly, and its unique black and white "arctic tactical" aesthetic. Owners and reviewers consistently highlight the Tegimented German submarine steel case for its exceptional scratch resistance and matte, non-reflective finish, with one owner reporting no scratches on the case after 17 years. The watch is also noted for its legibility and robust build, offering 1000m water resistance. However, some owners find the 44mm size and 14.7mm thickness wear large, and one reviewer noted the 4 o'clock crown positions lacked distinct clicks, leading to difficult date changes. Accuracy figures for the ETA 2824-2 movement vary, with one owner seeing +1/+2 s/day and another about -6 s/day. The Tegimented bracelet is reported to scratch more easily than the case by some, while others found it held up well.

At a glance

17 of 29 specs differ
Diameter
Aquascaphe MK237mm
U1 S L44mm
Power Reserve
Aquascaphe MK242h
U1 S L38h
Water Resistance
Aquascaphe MK2200m
U1 S L1,000m
MSRP
Aquascaphe MK2$680
U1 S L$3,532

Full specifications

Case

7 specs
Diameter
37mm
44mm
Thickness
12.9mm
14.7mm
Lug-to-Lug
45mm
Lug Width
20mm
22mm
Finish
black
Water Resistance
200m
1000m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Yes
Underside
Dial Color
Blue
Black
Indices
Lume
BGW9
Luminescent

Movement

4 specs
Caliber
Miyota 9039
Sellita SW200-1
Beat Rate
0 vph
28,800 vph
Power Reserve
42h
38h
Jewels
0
26

Pricing

1 specs
MSRP
$680
$3,532
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Baltic Aquascaphe MK2 vs Sinn U1 S L gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.