Side by side
A. Lange & Söhne 1815 UpdownvsZelos Nasa Edition (sellita)
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
Nasa Edition (sellita)39mm
Power Reserve
1815 Updown72h
Nasa Edition (sellita)40h
Water Resistance
1815 Updown30m
Nasa Edition (sellita)50m
MSRP
1815 Updown$39,600
Nasa Edition (sellita)$629
Full specifications
Case
7 specsThickness
8.7mm
7.6mm
Lug-to-Lug
—
39mm
Lug Width
—
20mm
Material
18kt White Gold
316L Stainless Steel
Finish
18-carat white gold | Case back: sapphire glass
Brushed and polished
Water Resistance
30m
50m
Caseback
Sapphire display
Solid
Crystal & Dial
4 specsCrystal
Sapphire
Domed Sapphire
AR Coating
—
Inner
Dial Color
Silver
NASA Edition (Sellita)
Indices
—
Applied
Movement
5 specsCaliber
L051.2
ETA/Peseux 7001
Beat Rate
21,600 vph
28,800 vph
Power Reserve
72h
40h
Jewels
0
25
Complications
Power Reserve Indicator
None
Pricing
1 specsMSRP
$39,600
$629
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