8F Factory Edition — Integrated Rose Gold Plated Bracelet
The 8F Factory tackles the ambitious Overseas Perpetual Calendar 4300V, delivering a functional multi-complication layout. While the genuine piece achieves a remarkably slim 8.1mm profile, this 8F iteration accepts a 12.0mm case thickness to accommodate the robust mechanics of its calendar module. It represents a pragmatic compromise, prioritizing a working moonphase and calendar sub-dials over absolute 1:1 dimensional accuracy.
Powered by a heavily modified Miyota 9015 base, the movement is decorated to emulate the architecture of the Vacheron Constantin Caliber 1120 QP. The factory utilizes a custom upper module plate to drive the day, date, month, and moonphase functions. Power reserve is approximately 36 hours, ensuring consistent torque distribution to the demanding calendar mechanism.
Crafted from 316L stainless steel with heavy 18K rose gold plating, the case and integrated bracelet weigh in at 164g. The silver dial presents a sharp contrast against the rose gold Maltese cross bezel, though horologists will note that the B064 reference traditionally denotes a blue dial. Finishing on the alternating brushed and polished bracelet links remains highly precise.
- Movement: Modified Miyota 9015 (Cal. 1120 QP Clone) — Approximately 36 hours
- Case Material: 18K Rose Gold Plated 316L Steel, 41.5mm diameter, 164g
- Bezel: 18K Rose Gold Plated, polished Maltese cross profile
- Crystal: Scratch-proof Sapphire with AR coating
- Bracelet: Integrated 18K Rose Gold Plated with double-deployant clasp
- Water Resistance: Stated 30m — professional pressure test recommended before swimming
Ideal for collectors seeking a functional mechanical perpetual calendar layout without the fragility of ultra-thin clone movements. It trades true case slimness for a reliable, easily serviceable Miyota architecture.

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