lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Sport under $2,000·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/BA111OD/CHPTR_Δ.1
SpecStudio
BA111OD CHPTR_Δ.1
Click to inspect
BA111OD · chptr 1

BA111OD CHPTR_Δ.1

$4,100In stock

Case

Diameter
44mm
Thickness
12.9mm
Material
Stainless Steel
Water resistance
50m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Soprod M100
Type
Automatic
Power reserve
42h

Design language

Case shape
round
Dial style
skeleton
Bezel
smooth_polished
Bracelet
rubber_strap

AI-detected from the product image

3 colorways

Alternatives

01The market

Market prices.

Retail$4,100

No forum listings recorded for this watch yet.

02The connection engine

More like this.

Zinvo Blade Spirit 44mm — off-center open-worked skeleton with hours sub-dial

Zinvo

Blade Spirit 44mm — off-center open-worked skeleton with hours sub-dial

44mm · Automatic$650

BA111OD CHPTR_Δ.8

BA111OD

CHPTR_Δ.8

40mm · Automatic$4,100

BA111OD CHPTR_Δ.5 Limited Edition

BA111OD

CHPTR_Δ.5 Limited Edition

44mm · Automatic$4,300

BEHRENS Rotary Watch 2025 Edition

BEHRENS

Rotary Watch 2025 Edition

42mm · Automatic$5,050

Zinvo STEALTH

Zinvo

STEALTH

44mm · Automatic$650

BEHRENS Starship-II Watch

BEHRENS

Starship-II Watch

42mm · Automatic$1,920

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The BA111OD CHPTR_Δ.1 is an automatic watch, with a 44mm stainless steel case, 12.9mm thick, powered by the Soprod M100 movement and a 42-hour power reserve. Water resistance is rated to 50m, under a sapphire crystal. Manufacturer MSRP is $4,100.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

Ask the communityStart a discussion about the CHPTR_Δ.1: get takes from other collectors.Ask →

05The discussion

Talk about the BA111OD CHPTR_Δ.1.