Side by side

Sinn 103 St DIAPALvsSeestern Sub 300 V4

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

103 St DIAPAL
Sinn103 St DIAPAL
MSRP $4,320
Sub 300 V4
SeesternSub 300 V4
MSRP $10

At a glance

17 of 29 specs differ
Diameter
103 St DIAPAL41mm
Sub 300 V442mm
Power Reserve
103 St DIAPAL48h
Sub 300 V441h
Water Resistance
103 St DIAPAL200m
Sub 300 V4200m
MSRP
103 St DIAPAL$4,320
Sub 300 V4$10

Full specifications

Case

7 specs
Category
Tool
Diver
Diameter
41mm
42mm
Thickness
17mm
13mm
Lug-to-Lug
46mm
Material
Stainless Steel
316L Stainless Steel
Finish
polished
Brushed + Sandblasted
Caseback
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
Dial Color
Anthracite
Orange
Indices
Applied
Lume
Luminescent
Japan Lume (blue glow)

Movement

5 specs
Caliber
LJP 8000
Seiko NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
48h
41h
Jewels
28
24
Complications
GMT, Date, Chronograph, Pilot's Bezel
GMT, Date

Pricing

1 specs
MSRP
$4,320
$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 DIAPAL

Owners widely praise the Sinn 103 St DIAPAL for its robust, Germanic design, legible dial, and functional combination of a chronograph and countdown bezel, all offered at a strong value compared to other classic chronographs. The tall, domed acrylic crystal is a favored feature for its warm look and impact resistance, and the polished stainless steel case is preferred by some over a matte finish. The watch meets DIN standards for anti-magnetic, water, and shock resistance, with low-pressure resistance. Some owners note the Sinn 103 St DIAPAL is thick, though its wearability is considered good even on smaller wrists. Availability in the US market without retail distribution is a noted concern for some. Overall, owners rate the Sinn 103 St DIAPAL highly for its rugged tool-watch functionality and distinctive vintage-inspired aesthetic at a competitive price.

Seestern Sub 300 V4

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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