Side by side

Sinn 103 St Ty HdvsBremont ALT1-C

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
ALT1-C
BremontALT1-C
MSRP $6,150

At a glance

16 of 29 specs differ
Diameter
103 St Ty Hd41mm
ALT1-C43mm
Power Reserve
103 St Ty Hd48h
ALT1-C40h
Water Resistance
103 St Ty Hd200m
ALT1-C100m
MSRP
103 St Ty Hd$2,797
ALT1-C$6,150

Full specifications

Case

8 specs
Category
Tool
Chronograph
Diameter
41mm
43mm
Thickness
14.7mm
16mm
Lug Width
20mm
22mm
Material
stainless steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
200m
100m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Regular length (15cm - 19cm wrist size)
Indices
Applied

Movement

3 specs
Caliber
ETA 7750
BE-50AE
Power Reserve
48h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$2,797
$6,150

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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 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.

Bremont ALT1-C

Owners widely praise the Bremont ALT1-C for its flawless brushed case finish, attractive cream dial with excellent contrast from anthracite sub-dials, and comfortable, balanced wearability. The watch features a well-finished strap and a movement that is a joy to wind, with precise chronograph operation. Reviewers note refined feuille hands and polished Arabic numerals with a golden tinge, balancing ruggedness with elegance. The Bremont ALT1-C averages +3 seconds per day, though one reviewer flags its 16mm height as less than ideal for under-cuff wear and describes the date window as narrow. The modified Valjoux 7750 movement's rotor spin is noticeable. Overall, owners rate the Bremont ALT1-C highly for its refined aesthetics and enjoyable user experience.

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