Grand Seiko SBGM245vsSpinnaker Fleuss GMT
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

SBGM245

Fleuss GMT
Diameter
40.5mm
43mm
Lug-to-Lug
48.6mm
lowest
51mm
Thickness
14.4mm
13mm
lowest
Water Resistance
200m
highest
150m
Power Reserve
72h
n/a
MSRP
$6,100
$299
lowest
Movement
Grand Seiko 9S66
Seiko NH34
Case
6 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Grand Seiko SBGM245 as a compelling mechanical GMT, blending sport and luxury with notable workmanship. Some owners find its 40.5mm case size and 14.4mm thickness wearable, while others consider it too large and prefer slimmer alternatives. The polished surfaces are noted to scratch easily, suggesting it is best suited for dressier occasions. Accuracy figures vary, with one owner reporting an average gain of two seconds per day, while others express a desire for a thinner case and a clasp with quick extension. Overall, owners rate the Grand Seiko SBGM245 highly for its mechanical GMT functionality and craftsmanship, despite some reservations about its size and scratch resistance.
Owners widely praise the Spinnaker Fleuss GMT for its aesthetic appeal and comfortable, light wearability, especially considering its affordable price point, highlighting its textured blue dial, applied lumed markers, and sapphire crystal with AR coating as stunning features. However, the watch faces criticism for its large 43mm case size, with some describing it as a "hockey puck," and a "jingly jangly" Beads of Rice bracelet with a pressed clasp, which is considered not finely finished. Some users also noted the internal bezel rotates too easily. Overall, owners rate the Spinnaker Fleuss GMT highly for its aesthetic success and value, particularly when found on discount.
The Spinnaker Fleuss GMT's Seiko NH34 movement is a recurring positive point. Reviewers also noted the watch's attractive colorways and comfortable wear. No shared weaknesses were identified across the reviews.
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