Side by side
Grand Seiko SBGW306vsLongines ULTRA-CHRON CLASSIC
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
23 of 29 specs differDiameter
SBGW30636.5mm
ULTRA-CHRON CLASSIC37mm
Power Reserve
SBGW30672h
ULTRA-CHRON CLASSIC52h
Water Resistance
SBGW306100m
ULTRA-CHRON CLASSIC50m
MSRP
SBGW306$17,900
ULTRA-CHRON CLASSIC$3,900
Full specifications
Case
9 specsCategory
Dress
—
Diameter
36.5mm
37mm
Thickness
11.7mm
10.95mm
Lug-to-Lug
42.7mm
44.6mm
Lug Width
18mm
19mm
Material
Gold
Stainless Steel
Finish
Brushed and polished
—
Water Resistance
100m
50m
Caseback
Solid
Screw-down case back
Crystal & Dial
5 specsCrystal Shape
Flat
—
AR Coating
Yes
Both sides
Dial Color
Black
Silver
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova
Movement
8 specsCaliber
9S64
L836.6
Type
Manual
Automatic
Beat Rate
28,800 vph
36,000 vph
Power Reserve
72h
52h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date
Pricing
1 specsMSRP
$17,900
$3,900
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