Baltic Hermétique Tourer BronzevsSartory Billard SB04-E
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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.

Hermétique Tourer Bronze

SB04-E
Diameter
37mm
39.5mm
Lug-to-Lug
46mm
46mm
Thickness
10mm
lowest
10.3mm
Water Resistance
150m
highest
100m
Power Reserve
42h
68h
highest
MSRP
$648
lowest
$3,609
Movement
Miyota 9039
La Joux-Perret G101
Case
4 specsCrystal & Dial
2 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Baltic Hermétique Tourer Bronze is praised for its vintage-meets-modern aesthetic, featuring a 37mm CuAl8 bronze alloy case that will develop patina, and a smoked dial with a gradient color shift. Owners highlight its slim case profile, comfortable lug-to-lug, and overall wearability. The Miyota 9039 automatic movement powers the watch, offering a 42-hour power reserve and a 4Hz seconds hand sweep. The recessed crown, while contributing to the 150-meter water resistance and silhouette, is noted as tricky to grip. On balance, owners and reviewers rate the Baltic Hermétique Tourer Bronze highly for its aesthetic appeal and wearability at its price point.
The watch's slim profile and comfortable fit are consistently praised. Reviewers note the bronze case develops a unique patina. No shared weaknesses were identified.
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.
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