- Year
- 2024
- Condition
- Excellent
- Set
- Box and papers
- Case
- Tonneau
- Size
- 50.00 × 42.70 mm, thickness circa 16.00 mm
Set and condition
Complete set
This RM 47 Sapphire is accompanied by its original presentation box, warranty card and supporting documentation. The watch and included items are inspected by an expert watchmaker before sale. Additional photographs and video of this piece are available on request.
Original presentation box
Original presentation box and packaging.
Original papers
Warranty card and supporting documentation.
Inspected prior to sale
Reviewed for condition, completeness and functionality. Additional details and photographs are available on request.
Condition photography
Additional close-up images of specific areas are available before purchase.
Overview
The samurai armour behind a transparent case
The case is sapphire throughout, so that the gold armour and the compact tourbillon calibre behind it read as though suspended, with the caseband pillars and the movement’s supports visible from every angle.
The armour is executed in the same eleven hand-carved and painted gold components as the ceramic version, arranged around a tourbillon deliberately kept small to leave the space for them. The strap is black rubber.
Key details
Design and engineering
- Sapphire caseMachined from blocks of sapphire, a material second only to diamond in hardness and correspondingly slow to cut and polish.
- Hand-carved armourEleven sculpted, engraved and partly painted 3N yellow gold components arranged around the tourbillon and visible from both the front and the back of the case. They took sixteen hours of engraving and nine hours of painting — more than a full day’s work per watch.
- Compact tourbillon calibreThe RM47 movement was designed smaller than it needed to be, specifically so that the armour would have room.
- Skeletonised grade 5 titanium baseplate and bridgesBlack PVD treated.
- Asano clan detailingThe crest of two crossed falcon feathers, associated with the clan to which the forty-seven rōnin belonged.
- Twin sapphire crystalsFront and back, in addition to the sapphire case, giving an unbroken view through the watch.
The reference
Technical specifications
| Reference | RM 47 |
|---|---|
| Calibre | Manual winding tourbillon |
| Functions | Hours, minutes; tourbillon |
| Baseplate and bridges | Grade 5 titanium, skeletonised, black PVD treated |
| Decoration | Hand-carved and painted gold samurai armour |
| Case | Tonneau |
| Case dimensions | 50.00 × 42.70 mm, thickness circa 16.00 mm |
| Case material | Sapphire |
| Strap | Black rubber |
Buying with HYPA
Purchase with confidence
- Original warranty card included, dated 2024
- Free insured delivery within Australia and Hong Kong · elsewhere quoted
- Payment by bank transfer
- Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
- Rated 5.0 on Google · 11 reviewsFrom clients of HYPA International on Google. Read the reviews
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