Resco Rtac GMTvsGrand Seiko SBGN027

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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.

Resco Rtac GMT at true scale

Rtac GMT

Grand Seiko SBGN027 at true scale

SBGN027

Diameter

44mm

39mm

Lug-to-Lug

51.5mm

45.9mm

lowest

Thickness

13mm

12.3mm

lowest

Water Resistance

200m

200m

MSRP

$985

lowest

$3,700

Movement

Quartz

Grand Seiko 9F86

Case

4 specs
Diameter
44mm
39mm
Thickness
13mm
12.3mm
Lug-to-Lug
51.5mm
45.9mm
Lug Width
22mm
19mm

Crystal & Dial

3 specs
Crystal
Sapphire
n/a
AR Coating
n/a
Yes
Dial Color
Blue
n/a

Movement

1 specs
Caliber
n/a
Grand Seiko 9F86

Pricing

1 specs
MSRP
$985
$3,700
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Reviews

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

Resco Rtac GMT

Owners widely praise the Resco RTAC GMT - Stainless for its exceptional quality and durability, making it a reliable choice for outdoor activities and harsh conditions. The watch is noted for maintaining its appearance even after rigorous use, reflecting the brand's heritage and American assembly. On balance, owners rate the Resco RTAC GMT - Stainless highly for its robust build and enduring quality, suitable for an active lifestyle.

Grand Seiko SBGN027

Grand Seiko SBGN027 owners widely praise its compact 39mm size, Zaratsu polishing, and true GMT complication from its HAQ 9F86 quartz movement, noting its excellent accuracy of +/- 10 seconds per year. The watch is also lauded for its thin profile, grab-and-go suitability, and attractive "jewelry look." However, some users report issues such as limited lume, a GMT hand that can be mistaken for the minute hand, and a bezel index that disappeared on one example after a few months. The bracelet's lack of micro-adjustments is a recurring point of annoyance, and some find the design too plain or dress-casual. Overall, owners rate the Grand Seiko SBGN027 highly for its exceptional finishing and accurate HAQ GMT movement in a versatile, compact package.