Side by side

Grand Seiko SBGW306vsSpinnaker Cahill Automatic

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

SBGW306
Grand SeikoSBGW306
MSRP $17,900
Cahill Automatic
SpinnakerCahill Automatic
MSRP $350

At a glance

13 of 29 specs differ
Diameter
SBGW30636.5mm
Cahill Automatic42mm
Power Reserve
SBGW30672h
Cahill Automatic40h
Water Resistance
SBGW306100m
Cahill Automatic200m
MSRP
SBGW306$17,900
Cahill Automatic$350

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
36.5mm
42mm
Thickness
11.7mm
13.7mm
Lug-to-Lug
42.7mm
51mm
Lug Width
18mm
22mm
Material
Gold
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Green

Movement

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

Pricing

1 specs
MSRP
$17,900
$350

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