Side by side

Sinn 103 St Ty HdvsSeiko Prospex LX line

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

103 St Ty Hd
Sinn103 St Ty Hd
MSRP $2,797
Prospex LX line
SeikoProspex LX line
MSRP $6,500
What people say

Owners + reviewers, side by side

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

Sinn 103 St Ty Hd

The Sinn 103 St Ty Hd is widely praised as a stunning, heritage-inspired pilot's chronograph with a utilitarian feel and bold red accents on a black dial. Owners note it offers a different experience compared to typical Sinn watches. It features a hand-wound Sellita SW510 M movement, a 58-hour power reserve, 20 ATM water resistance, and impact-resistant acrylic glass. The Sinn 103 St Ty Hd is priced at €2,590 and is limited to 1,000 units. On balance, owners and reviewers rate the Sinn 103 St Ty Hd highly for its unique aesthetic and tool watch attributes.

From video reviewers

The watch's robustness and ability to withstand extreme conditions without compromising accuracy are notable strengths. The relatively high price point is a shared weakness. Reviewers disagree on the watch's thickness, with one reviewer considering it a drawback and the other not mentioning it.

Seiko Prospex LX line

Owners widely report the Seiko Prospex LX line's finishing is a step up from other models, with a case that sits well on the wrist, and some praise the green sunburst dial with blue anti-reflective sapphire crystal as phenomenal. However, owners note the high MSRP limited sales, with some desiring smaller cases and a reduced price, and others experienced quality control issues such as detached second hands and peeling DLC coating, leading to concerns about fragility. On balance, owners feel the Seiko Prospex LX line was discontinued due to pricing that alienated its target market, despite its attractive dial.

At a glance

18 of 29 specs differ
Diameter
103 St Ty Hd41mm
Prospex LX line44.8mm
Power Reserve
103 St Ty Hd48h
Prospex LX line72h
Water Resistance
103 St Ty Hd200m
Prospex LX line300m
MSRP
103 St Ty Hd$2,797
Prospex LX line$6,500

Full specifications

Case

9 specs
Category
Tool
Diver
Diameter
41mm
44.8mm
Thickness
14.7mm
15.7mm
Lug-to-Lug
50.9mm
Lug Width
20mm
22mm
Material
stainless steel
Titanium
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Anti-reflective coating on inner surface
Indices
Applied
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
ETA 7750
5R65
Type
Automatic
Spring Drive
Power Reserve
48h
72h
Jewels
23
30

Pricing

1 specs
MSRP
$2,797
$6,500
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