Side by side

Spinnaker Croft 39 GMTvsSugess Tourbillon Master S454

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

Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445
Tourbillon Master S454
SugessTourbillon Master S454
MSRP $999

At a glance

12 of 29 specs differ
Diameter
Croft 39 GMT39mm
Tourbillon Master S45441mm
Power Reserve
Croft 39 GMT40h
Tourbillon Master S45440h
Water Resistance
Croft 39 GMT100m
Tourbillon Master S4545m
MSRP
Croft 39 GMT$445
Tourbillon Master S454$999

Full specifications

Case

7 specs
Category
GMT
Chronograph
Diameter
39mm
41mm
Thickness
13mm
8.9mm
Lug-to-Lug
47mm
44.9mm
Material
316L Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
100m
5m
Caseback
Solid
Display

Crystal & Dial

1 specs
Dial Color
Red
Black

Movement

3 specs
Caliber
Seiko NH34A
ST8000
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph

Pricing

1 specs
MSRP
$445
$999

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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.

Spinnaker Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

Sugess Tourbillon Master S454

Owners widely praise the Sugess Tourbillon Master S454 for its attractive dial finishing, sharp case edges, and the visual appeal of its genuine tourbillon, especially considering its price point. Specific strengths highlighted include a delicate 38mm size with 11.5mm thickness and a crisp winding feel. However, multiple owners note accuracy issues, with figures ranging from +6 to +11 seconds per day and one report of -12 seconds per day. Concerns are also raised about the movement's finishing upon close inspection, the lack of internal anti-reflective coating causing reflections, a small crown that makes winding cumbersome, and potential long-term durability and serviceability challenges. The 24-hour complication is not independently adjustable, and water resistance is limited to 50m. Overall, owners rate the Sugess Tourbillon Master S454 highly for its impressive tourbillon and finishing at the price, despite some noted accuracy and finishing caveats.

From video reviewers

The value proposition of a functional tourbillon movement under $600 is a significant strength. Reviewers noted issues with the bracelet and wearability.

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