Side by side

Grand Seiko SBGM245vsTissot Gentleman Open Heart

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

SBGM245
Grand SeikoSBGM245
MSRP $6,100
Gentleman Open Heart
TissotGentleman Open Heart
MSRP $1,025

At a glance

13 of 29 specs differ
Diameter
SBGM24540.5mm
Gentleman Open Heart40mm
Power Reserve
SBGM24572h
Gentleman Open Heart80h
Water Resistance
SBGM245200m
Gentleman Open Heart100m
MSRP
SBGM245$6,100
Gentleman Open Heart$1,025

Full specifications

Case

6 specs
Category
GMT
Chronograph
Diameter
40.5mm
40mm
Thickness
14.4mm
11.5mm
Lug-to-Lug
48.6mm
40mm
Lug Width
20mm
21mm
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
Dial Color
Black
Silver
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
9S66
Power Reserve
72h
80h

Pricing

1 specs
MSRP
$6,100
$1,025

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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.

Grand Seiko SBGM245

Owners widely appreciate the Grand Seiko SBGM245 for its blend of sport and luxury, with one enthusiast highlighting its superior workmanship over quartz movements. However, opinions on its size vary, as one owner found the SBGM245 too large, preferring the comfort of a different variant. Overall, owners value the Grand Seiko SBGM245 for its refined craftsmanship, though its wearability is a point of personal preference.

Tissot Gentleman Open Heart

Owners widely praise the Tissot Gentleman Open Heart for its versatile dressy-sporty aesthetic and elegant sunburst dial finish, with one owner preferring its less shiny blue dial compared to other versions. The watch offers excellent fit and bracelet adjustability, and its modified Powermatic 80 movement achieves COSC-level accuracy of -3 to +5 seconds/day, though the seconds hand movement is slightly less smooth at 6 movements per second. However, one owner reported the watch arrived non-functional, requiring a return due to an inoperable movement. On balance, owners rate the Tissot Gentleman Open Heart highly for its aesthetic appeal and accurate timekeeping, despite a reported instance of a faulty movement.

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