Isotope Métiers d’Art. Bespoke for True CollectorsvsSartory Billard SB04
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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.

Métiers d’Art. Bespoke for True Collectors

SB04
Diameter
38mm
40mm
Lug-to-Lug
n/a
45.5mm
Thickness
10mm
lowest
11.5mm
Water Resistance
100m
highest
30m
Power Reserve
42h
n/a
MSRP
$2,740
lowest
$3,376
Movement
ETA/Peseux 7001
La Joux-Perret G100
Case
6 specsCrystal & Dial
1 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Isotope Métiers d’Art. Bespoke Watches for True Collectors for its 38mm size, with one owner favorably comparing its quality to other independent brands. Reviewers highlight the ETA/Peseux 7001 manual-wind movement and 100m water resistance as positive attributes. However, one owner finds the manual wind annoyingly stiff, and a reviewer notes the dial is too plain and the lugs and crown are too petite for the case. Overall, owners rate the Isotope Métiers d’Art. Bespoke Watches for True Collectors highly for its compact 38mm sizing and independent brand quality, despite some criticism of the winding action and dial design.
Owners widely praise the Sartory Billard SB04 for its stunning, custom dials with remarkable texture and light play, with many calling it a masterpiece. The watch is noted for its modern wearing experience and comfortable, light feel, particularly when constructed from titanium. Some owners find the steel casebacks slightly sharp due to deep laser cutting, and one owner notes the hands can be difficult to see depending on the viewing angle. The Sartory Billard SB04 is powered by the La Joux-Perret G100 automatic movement. Overall, owners rate the Sartory Billard SB04 highly for its exceptional dial artistry and perceived value.
The dial's textured finish and color shift are highlighted as a key strength. The bracelet's perceived lack of refinement and end-link fit are noted as a drawback. Reviewers disagree on the case size, with mentions of 35.9mm and 40mm.
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