4131 open‑caseback Ice Blue Daytona – available with original‑spec counterweight case or platinum case. Custom options supported.




Bozwatch-Top luxury watch – top custom modification studio
Highest Modification For Top-Tier Brands-PP(Patek Philippe),RM(Richard Mille),AP(Audemars Piguet),Rolex
4131 open‑caseback Ice Blue Daytona – available with original‑spec counterweight case or platinum case. Custom options supported.




Custom 4132 non‑indexed movement






Patek Philippe 5740 genuine dial




Custom 18K gold 5167R ✈️
CNC gold case from original factory data
Custom dial, hands, date wheel
Custom 324 gilt‑engraved movement









Custom 18k solid gold 5712R ✈️
CNC case from original factory data
Custom dial, hands, moon phase, solid center axle
Value‑priced custom‑molded 240 integrated movement









Real photos of the 4131/4132 non‑indexed movement
CNC‑engraved bridges (4131 uses genuine original bridges)
18K gold rotor, non‑indexed micro‑adjust weighted balance











Top‑spec custom 5167A – CNC case from original factory data, custom dial and hands, bold date font, solid center axle, ACE 324 non‑indexed gilt‑engraved movement.









