Side by side

Sinn 103 St Ty HdvsGrand Seiko SLGA015

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
SLGA015
Grand SeikoSLGA015
MSRP $12,600
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.

Grand Seiko SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

At a glance

16 of 29 specs differ
Diameter
103 St Ty Hd41mm
SLGA01543.8mm
Power Reserve
103 St Ty Hd48h
SLGA015120h
Water Resistance
103 St Ty Hd200m
SLGA015200m
MSRP
103 St Ty Hd$2,797
SLGA015$12,600

Full specifications

Case

8 specs
Category
Tool
Diver
Diameter
41mm
43.8mm
Thickness
14.7mm
13.8mm
Lug-to-Lug
51.5mm
Lug Width
20mm
23mm
Material
stainless steel
Titanium
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Yes
Indices
Applied

Movement

4 specs
Caliber
ETA 7750
9RA5
Type
Automatic
Spring Drive
Power Reserve
48h
120h
Jewels
23
25

Pricing

1 specs
MSRP
$2,797
$12,600
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