Side by side
A. Lange & Söhne 1815 UpdownvsGrand Seiko SBGZ011
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
17 of 29 specs differDiameter
1815 Updown39mm
SBGZ01140mm
Power Reserve
1815 Updown72h
SBGZ01184h
Water Resistance
1815 Updown30m
SBGZ01130m
MSRP
1815 Updown$39,600
SBGZ011$84,000
Full specifications
Case
7 specsDiameter
39mm
40mm
Thickness
8.7mm
9.6mm
Lug-to-Lug
—
45.2mm
Lug Width
—
19mm
Material
18kt White Gold
Platinum
Finish
18-carat white gold | Case back: sapphire glass
Brushed and polished
Caseback
Sapphire display
Solid
Crystal & Dial
3 specsAR Coating
—
Yes
Dial Color
Silver
Black
Indices
—
Applied
Movement
6 specsCaliber
L051.2
9R02
Type
Manual
Spring Drive
Beat Rate
21,600 vph
28,800 vph
Power Reserve
72h
84h
Jewels
0
25
Complications
Power Reserve Indicator
None
Pricing
1 specsMSRP
$39,600
$84,000
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