Sartory Billard SB04-EvsTrenyo Tiger and Dragon Unique Piece
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

SB04-E

Tiger and Dragon Unique Piece
Diameter
39.5mm
40mm
Lug-to-Lug
46mm
lowest
47.5mm
Thickness
10.3mm
lowest
10.8mm
Water Resistance
100m
highest
50m
Power Reserve
68h
68h
MSRP
$3,609
lowest
$6,151
Movement
La Joux-Perret G101
La Joux-Perret G101
Case
5 specsCrystal & Dial
3 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Sartory Billard SB04-E for its impressive and deep dials, with specific mentions of the 12 Soleil pattern and the Exquisite Blue Guilloché appearing to move like water in the light. Reviewers highlight its sensible 39.5mm size and 100m water resistance, noting the overall composition looks more expensive than its price. One owner points out slightly sharp edges on the caseback and suggests a more domed crystal. The watch utilizes the La Joux-Perret G101 automatic movement with a 68-hour power reserve. Overall, owners and reviewers rate the Sartory Billard SB04-E highly for its unique dial work and value proposition.
Trenyo Tiger and Dragon Unique Piece owners highlight the intricate hand-engraving on the case back, a testament to the creator's seven years of experience as a jeweler and engraver. The background of the engraving is detailed with Luminova BGW9, applied and painted under a microscope in a process likened to enameling. On balance, owners rate the Trenyo Tiger and Dragon Unique Piece highly for its unique artisanal craftsmanship and detailed execution of the hand-engraved dial.
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