BA111OD CHPTR_Δ.1vsBA111OD CHPTR_Δ [MDP] 40mm
![CHPTR_Δ [MDP] 40mm](/_next/image?url=%2Fimages%2Fwatches%2Fba111od--chptr_delta-mdp-40mm.png%3Fv%3D1790514488786&w=1536&q=60)
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

CHPTR_Δ.1
![BA111OD CHPTR_Δ [MDP] 40mm at true scale](/_next/image?url=%2Fimages%2Fwatches%2Fba111od--chptr_delta-mdp-40mm.png%3Fv%3D1790514488786&w=1536&q=60)
CHPTR_Δ [MDP] 40mm
Diameter
44mm
40mm
Lug-to-Lug
46mm
n/a
Thickness
12.9mm
12.9mm
Water Resistance
50m
50m
Power Reserve
42h
42h
MSRP
$4,100
$4,100
Movement
Soprod M100
Soprod M100
Case
4 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
BA111OD CHPTR_Δ.1 is widely praised for its unique time display and exceptional value, offering a Swiss-made luxury watch experience for under €3,000. Reviewers highlight its captivating architectural dial with a satellite dot hour indicator and a complex module based on the Soprod M100 movement. The 44mm stainless steel case is noted for its wrist-friendly short lugs, though some owners find BA111OD watches to be quite large. On balance, owners and reviewers rate the BA111OD CHPTR_Δ.1 highly for its avant-garde design and impressive watchmaking at its price point.
The BA111OD CHPTR_Δ [MDP] 40mm is widely praised for its exceptional value, offering a unique hypocycloidal time display typically seen on much more expensive timepieces. Owners and reviewers highlight the captivating dial design and the technical Swiss luxury at a price point under €3,000 or $2,620. The 40mm case size is noted as a welcome reduction, maintaining manageable dimensions with a 10.5mm thickness and 47mm lug-to-lug. The Soprod M100 automatic movement is present. Overall, owners and reviewers rate the BA111OD CHPTR_Δ [MDP] 40mm highly for its innovative time display and strong value proposition.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.










