Clean Factory has dominated for two years. But BT Factory is a serious competitor, especially in Datejust and Day-Date. Here's the head-to-head.
Submariner: Clean Factory Wins
Clean Factory's bezel is tighter, crystal clearer, VR3130 movement more reliable than BT's A2824. Clean's $568 version is worth the extra over BT's $398.
Datejust 41: BT Factory Wins
BT's fluted bezel catches light beautifully. Dial options are broader. Clean Factory's Datejust is good, but BT's bezel quality is noticeably better.
Daytona: Clean Factory Wins (by a Lot)
Clean Factory's Dandong 4131 column wheel movement vs BT's modified 7750. No comparison.
GMT-Master II: Clean Factory Wins
Clean Factory uses Dandong 3285 with correct hand stack. BT uses 2836-2 with wrong stack. Bezel colours also more accurate on Clean Factory.
Day-Date 40: BT Factory Wins
BT's President bracelet flex and weight feel genuine. More dial options including Olive Green.
Summary
Buy Clean Factory for Submariner, Daytona, and GMT. Buy BT Factory for Datejust and Day-Date.
