Side by side
Sinn 456 TW70 GGvsGrand Seiko SBGM221
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
456 TW70 GG28mm
SBGM22139.5mm
Power Reserve
456 TW70 GG38h
SBGM22172h
Water Resistance
456 TW70 GG200m
SBGM22130m
MSRP
456 TW70 GG$6,372
SBGM221$5,400
Full specifications
Case
8 specsCategory
Tool
GMT
Diameter
28mm
39.5mm
Thickness
9mm
13.7mm
Lug-to-Lug
—
46.9mm
Lug Width
14mm
19mm
Finish
polished
Brushed and polished
Water Resistance
200m
30m
Caseback
—
Solid
Crystal & Dial
4 specsCrystal Shape
—
Flat
AR Coating
Underside
Yes
Indices
—
Applied
Lume
Luminescent
None
Movement
3 specsCaliber
SW 100
9S66
Power Reserve
38h
72h
Complications
Date
None
Pricing
1 specsMSRP
$6,372
$5,400
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