Side by side

Sinn 103 St DIAPALvsTudor Pelagos Ultra

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
Pelagos Ultra
TudorPelagos Ultra
MSRP $6,900

At a glance

22 of 29 specs differ
Diameter
103 St DIAPAL41mm
Pelagos Ultra40mm
Power Reserve
103 St DIAPAL48h
Pelagos Ultra65h
Water Resistance
103 St DIAPAL200m
Pelagos Ultra1,000m
MSRP
103 St DIAPAL$4,320
Pelagos Ultra$6,900

Full specifications

Case

9 specs
Category
Tool
Diver
Diameter
41mm
40mm
Thickness
17mm
14.5mm
Lug-to-Lug
46mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Finish
polished
Satin
Water Resistance
200m
1000m
Caseback
Solid screw-down

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Anthracite
Black
Indices
Lume
Luminescent
None

Movement

7 specs
Caliber
LJP 8000
MT5612-U
Beat Rate
28,800 vph
0 vph
Power Reserve
48h
65h
Jewels
28
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT, Date, Chronograph, Pilot's Bezel
None

Pricing

1 specs
MSRP
$4,320
$6,900

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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.

Tudor Pelagos Ultra

The Tudor Pelagos Ultra is praised for its 1000 meters of water resistance, METAS-certified Calibre MT5612-U movement, and fully lumed dial and bezel. Reviewers highlight its titanium case and self-adjusting clasp as key features. The Tudor Pelagos Ultra is slightly larger at 43mm than some other models in the line but wears comfortably. Overall, owners and reviewers rate the Tudor Pelagos Ultra highly for its technical specifications and comfortable wearability as a flagship dive watch.

From video reviewers

The Tudor Pelagos Ultra's all-titanium construction provides a lightweight and durable case. One weakness is the lack of lume brightness. Reviewers disagree on whether the helium release valve is a notable feature or a drawback for a more streamlined design.

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