BA111OD Chapter 4 Skeleton Tourbillon T.V.D.vsBA111OD Chapter 7 Skeleton Anthracite

Ref. chapter-4-skeleton-tourbillon-t-v-d-39mm·MSRP $12,000

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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.

Chapter 4 Skeleton Tourbillon T.V.D.

Chapter 7 Skeleton Anthracite
Diameter
39mm
40mm
Lug-to-Lug
44.8mm
lowest
47mm
Thickness
n/a
10.5mm
Water Resistance
50m
highest
30m
Power Reserve
120h
highest
38h
MSRP
$12,000
$1,635
lowest
Movement
in-house tourbillon calibre
Sellita SW200-1
Case
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The BA111OD Chapter 4 Skeleton Tourbillon T.V.D. is widely sought after as an affordable, visually engaging Swiss-made tourbillon. Owners praise the brand's exceptional quality and the watch's ability to showcase its movement well. Reviewers highlight the open-worked dial and the technical display of the skeletonized movement. Some find the hands hard to see and the case design bland, while others note the audible ticking of the movement and glare on the sapphire crystal. One owner reported a 105-hour power reserve. Overall, owners and reviewers rate the BA111OD Chapter 4 Skeleton Tourbillon T.V.D. highly for its value and intricate, artistic movement presentation.
Owners and reviewers widely praise the BA111OD Chapter 7 Skeleton Anthracite for its well-finished, legible skeletonized dial and attractive price point, with one owner highlighting its unique sun-over-Lac-Leman design. The 40mm steel case and integrated bracelet with micro-adjustment are noted as sporty-chic and practical for daily wear. A reviewer points out the 38-hour power reserve is less generous than expected, and another owner finds strap changes fiddly due to the absence of quick-release spring bars. On balance, owners and reviewers rate the BA111OD Chapter 7 Skeleton Anthracite highly for its impressive skeletonized movement exhibition and finishing at an attractive price.
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