Baltic Hermétique SummervsSartory 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 Summer

SB04-E
Diameter
37mm
39.5mm
Lug-to-Lug
46mm
46mm
Thickness
10.8mm
10.3mm
lowest
Water Resistance
150m
highest
100m
Power Reserve
42h
68h
highest
MSRP
$594
lowest
$3,609
Movement
Miyota 9039
La Joux-Perret G101
Case
3 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 Summer is praised for its compact 37mm brushed stainless steel case with a polished bezel and its vibrant, well-balanced dials. Reviewers note the strong blue glow from the BGW9 Super-LumiNova indices and the inclusion of color-matched FKM rubber straps or Baltic bracelets. The Miyota 9039 movement supports hacking and hand-winding. One reviewer flags that the recessed crown can be difficult to manipulate without long fingernails. On balance, reviewers highlight the Baltic Hermétique Summer's attractive design and value, despite the potential for crown manipulation issues.
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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