Side by side

Resco StainlessvsSinn U1 S L

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

U1 S L
SinnU1 S L
MSRP $3,532
What people say

Owners + reviewers, side by side

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

Resco Stainless

Owners widely praise Resco's customer service, with one owner noting their watch was repaired quickly and affordably after a severe accident, and another highlighting the brand's veteran-owned roots and Navy Seal heritage. The cases are described as strong and durable, suitable for an outdoorsy lifestyle and harsh conditions. One owner likes the dial's small 0.2-second indices and trident second hand. However, one owner reported rusting issues on the case by the time and date adjusting screw, which the company stated is normal and may require cleaning. Another owner feels Resco watches are not great value for money given their ETA movements and price. Overall, owners rate Resco watches highly for their durability and customer service, with the strong cases being a significant draw.

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
Stainless42mm
U1 S L44mm
Power Reserve
Stainless
U1 S L38h
Water Resistance
Stainless200m
U1 S L1,000m
MSRP
Stainless$1,955
U1 S L$3,532

Full specifications

Case

8 specs
Category
Diver
Diameter
42mm
44mm
Thickness
13mm
14.7mm
Lug-to-Lug
50mm
Lug Width
0mm
22mm
Finish
black
Water Resistance
200m
1000m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Black
Indices
Lume
None
Luminescent

Movement

3 specs
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
26

Pricing

1 specs
MSRP
$1,955
$3,532
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