Which is cheaper, the Sinn 103 St Ty Hd or the Seestern Sub 300 V4?

At MSRP the Seestern Sub 300 V4 is the cheaper of the two at $10, against $2,797 for the Sinn 103 St Ty Hd — a $2,787 gap before any retailer discounting.

Which is bigger, the Sinn 103 St Ty Hd or the Seestern Sub 300 V4?

The Seestern Sub 300 V4 wears larger at 42mm versus 41mm for the Sinn 103 St Ty Hd — a 1mm difference across the dial.

Which has a longer power reserve, the Sinn 103 St Ty Hd or the Seestern Sub 300 V4?

The Sinn 103 St Ty Hd carries a 48-hour power reserve against 41 hours on the Seestern Sub 300 V4.

What movement does the Sinn 103 St Ty Hd run compared to the Seestern Sub 300 V4?

Both watches run automatic movements — the Sinn 103 St Ty Hd uses the ETA 7750 and the Seestern Sub 300 V4 uses the Seiko NH35A.

Side by side

Sinn 103 St Ty HdvsSeestern Sub 300 V4

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

Sinn 103 St Ty Hd

103 St Ty Hd

MSRP $2,797

Seestern Sub 300 V4

Sub 300 V4

MSRP $10

At a glance

18 of 29 specs differ

Diameter

103 St Ty Hd41mm

Sub 300 V442mm

Power Reserve

103 St Ty Hd48h

Sub 300 V441h

Water Resistance

103 St Ty Hd200m

Sub 300 V4200m

MSRP

103 St Ty Hd$2,797

Sub 300 V4$10

Full specifications

Case

7 specs

Crystal & Dial

5 specs

Crystal Shape

—

Flat

AR Coating

—

Underside

Dial Color

Black

Orange

Indices

—

Applied

Lume

None

Japan Lume (blue glow)

Movement

5 specs

Caliber

ETA 7750

Seiko NH35A

Beat Rate

28,800 vph

21,600 vph

Power Reserve

48h

41h

Jewels

Complications

None

GMT, Date

Pricing

1 specs

MSRP

$2,797

$10

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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.

Owners widely praise the Seestern Sub 300 V4 for its terrific fit and finish and surprising little touches at its $179 price, noting top-notch case, dial, bezel, and crystal. The bracelet is considered nice enough for the price point, and the watch is powered by the solid and reliable Seiko NH35 movement. Some owners report that the polished sides of the case show signs of wear. Overall, owners rate the Seestern Sub 300 V4 highly for its excellent case, dial, and bezel finishing at the price.

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