Side by side

Grand Seiko SBGR321vsZero West M1 Mosquito (44mm)

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

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SBGR321
Grand SeikoSBGR321
MSRP $5,200
M1 Mosquito (44mm)
Zero WestM1 Mosquito (44mm)
MSRP $4,770
Buy from Grand Seiko ↗
Buy used on eBay ↗
Buy from Zero West ↗
Buy used on eBay ↗

At a glance

9 of 29 specs differ
Diameter
SBGR32140mm
M1 Mosquito (44mm)44mm
Power Reserve
SBGR32172h
M1 Mosquito (44mm)41h
Water Resistance
SBGR321100m
M1 Mosquito (44mm)100m
MSRP
SBGR321$5,200
M1 Mosquito (44mm)$4,770

Full specifications

Case

5 specs
Category
Dress
—
Diameter
40mm
44mm
Thickness
13mm
14.1mm
Lug-to-Lug
46.6mm
49.6mm
Lug Width
20mm
22mm

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

2 specs
Caliber
9S65
Sellita SW200-1
Power Reserve
72h
41h

Pricing

1 specs
MSRP
$5,200
$4,770
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