Side by side

Sinn 103 St Ty HdvsBremont Supermarine 300M

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
Supermarine 300M
BremontSupermarine 300M
MSRP $3,550

At a glance

15 of 29 specs differ
Diameter
103 St Ty Hd41mm
Supermarine 300M40mm
Power Reserve
103 St Ty Hd48h
Supermarine 300M40h
Water Resistance
103 St Ty Hd200m
Supermarine 300M300m
MSRP
103 St Ty Hd$2,797
Supermarine 300M$3,550

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
41mm
40mm
Thickness
14.7mm
12mm
Material
stainless steel
904L Stainless Steel
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Green
Indices
Applied

Movement

3 specs
Caliber
ETA 7750
BE-92AE
Power Reserve
48h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$2,797
$3,550

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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 Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

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