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.

Richard Lange Jumping Seconds

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 specsCrystal & Dial
3 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
The jumping seconds complication and power reserve indicator are key strengths. The lack of lume is a noted weakness.
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.
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