Side by side

Sinn U1 S LvsVaer D5 Meridian Auto

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

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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.

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.

Vaer D5 Meridian Auto

Owners widely praise the Vaer D5 Meridian Auto for its classic aesthetic, comfortable 39mm size, and well-executed 120-click bezel with minimal back play. Reviewers highlight the anodized aluminum bezel insert, lyre lugs, sword hands, and gold accents on the blue sunburst dial as contributing to its old-school charm, making it a great companion for desk diving with comfortable strap options and quick-release spring bars. One owner specifically noted satisfaction with the 42mm variant's premium steel bracelet featuring a tool-less micro-adjust clasp. On balance, owners and reviewers rate the Vaer D5 Meridian Auto highly for its classic design and comfortable wearability at its price point.

From video reviewers

The D5 Meridian Auto is praised for its classic 39mm diver proportions and USA assembly. No shared weaknesses were identified.

At a glance

17 of 29 specs differ
Diameter
U1 S L44mm
D5 Meridian Auto39mm
Power Reserve
U1 S L38h
D5 Meridian Auto
Water Resistance
U1 S L1,000m
D5 Meridian Auto200m
MSRP
U1 S L$3,532
D5 Meridian Auto$679

Full specifications

Case

8 specs
Diameter
44mm
39mm
Thickness
14.7mm
12.5mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
black
Water Resistance
1000m
200m
Caseback

Crystal & Dial

4 specs
Crystal Shape
AR Coating
Underside
Indices
Lume
Luminescent
None

Movement

4 specs
Caliber
Sellita SW200-1
Miyota 9015
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
0h
Jewels
26
0

Pricing

1 specs
MSRP
$3,532
$679
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