Side by side

Sinn 144 St DIAPALvsSpinnaker Dumas GMT

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

144 St DIAPAL
Sinn144 St DIAPAL
MSRP $4,428
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

19 of 29 specs differ
Diameter
144 St DIAPAL41mm
Dumas GMT44mm
Power Reserve
144 St DIAPAL48h
Dumas GMT40h
Water Resistance
144 St DIAPAL200m
Dumas GMT300m
MSRP
144 St DIAPAL$4,428
Dumas GMT$399

Full specifications

Case

9 specs
Category
Tool
GMT
Diameter
41mm
44mm
Thickness
14.2mm
15mm
Lug-to-Lug
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Finish
bead-blasted
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Anthracite
Blue
Indices
Applied
Lume
Luminescent
None

Movement

4 specs
Caliber
LJP 8000
Seiko NH34A
Power Reserve
48h
40h
Jewels
28
25
Complications
GMT, Date, Chronograph, Tachymeter
None

Pricing

1 specs
MSRP
$4,428
$399

Follow this matchup

Get a note when Sinn 144 St DIAPAL vs Spinnaker Dumas GMT gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Sinn 144 St DIAPAL

The Sinn 144 St DIAPAL is widely praised for its flawless bead-blasting, comfortable 41mm wearability, and legible presentation of information, including a pulsemeter and tachymeter scales. Owners appreciate its quality and confidence-inspiring feel, with one noting excellent timekeeping at 5 seconds slow over 4 days. However, the reset pusher is stiff, and strap options are limited by the integrated case. Some find the 12-hour UTC hand less intuitive, and one owner considers it too sporty for a sole daily watch. On balance, owners rate the Sinn 144 St DIAPAL highly for its robust build and functional, legible dial at its price point.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.