Side by side

Grand Seiko SBGW306vsSpinnaker Dumas Automatic

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

SBGW306
Grand SeikoSBGW306
MSRP $17,900
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

13 of 29 specs differ
Diameter
SBGW30636.5mm
Dumas Automatic44mm
Power Reserve
SBGW30672h
Dumas Automatic40h
Water Resistance
SBGW306100m
Dumas Automatic300m
MSRP
SBGW306$17,900
Dumas Automatic$239

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
36.5mm
44mm
Thickness
11.7mm
15mm
Lug-to-Lug
42.7mm
48mm
Lug Width
18mm
22mm
Material
Gold
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Blue

Movement

3 specs
Caliber
9S64
SII NH35A
Type
Manual
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$17,900
$239

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