A. Lange & Söhne Richard Lange Jumping SecondsvsZelos Comet 39

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

A. Lange & Söhne Richard Lange Jumping Seconds at true scale

Richard Lange Jumping Seconds

Zelos Comet 39 at true scale

Comet 39

Diameter

39.9mm

39mm

Lug-to-Lug

n/a

45mm

Thickness

10.6mm

7.6mm

lowest

Water Resistance

30m

50m

highest

Power Reserve

42h

n/a

MSRP

n/a

$2,499

Movement

A. Lange & Söhne L0xx

ETA/Peseux 7001

Case

8 specs
Diameter
39.9mm
39mm
Thickness
10.6mm
7.6mm
Lug-to-Lug
n/a
45mm
Lug Width
n/a
20mm
Material
18kt White Gold
316L Stainless Steel
Finish
18-carat white gold | Case back: sapphire glass
n/a
Water Resistance
30m
50m
Caseback
Sapphire display
n/a

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
n/a
Dial Color
Black
Tantalum LE

Movement

5 specs
Caliber
A. Lange & Söhne L0xx
ETA/Peseux 7001
Beat Rate
21,600 vph
0 vph
Power Reserve
42h
0h
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
n/a
$2,499
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

A. Lange & Söhne Richard Lange Jumping Seconds

Owners and reviewers widely praise the A. Lange & Söhne Richard Lange Jumping Seconds for its refined subtlety and intricate German silver movement finishing, with many highlighting the deadbeat seconds complication and zero-reset function. The watch's 39.9mm case size is considered wearable by some, though others find it slightly too thick for a pure dress watch. The unique power reserve indicator, which only appears when below 10%, is a favorite feature for one owner. Some community members express a desire for tighter lugs or a smaller case size, and the jumping seconds complication is noted as a significant cost driver. On balance, owners and reviewers rate the A. Lange & Söhne Richard Lange Jumping Seconds highly for its sophisticated complication and exceptional finishing.

From video reviewers

The jumping seconds complication and power reserve indicator are key strengths. The lack of lume is a noted weakness.

Zelos Comet 39

Owners widely praise the Zelos Comet 39 for its 39mm size, considered perfect for dress or casual wear, and its attractive dial with deep starburst effects and a blend of modern and vintage charm. The manual-wind Sellita SW215 movement contributes to a thin profile under 10mm, and the winding action is described as a joy. The watch is also noted for its good lume and wearability, with short lug-to-lug distance. Some owners express frustration with Zelos's limited production runs leading to quick sell-outs. One owner dislikes the logo, calling it childlike. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent wearability and attractive dial at its price point.