Filippo Loreti Watches Celestial TourbillonvsGrand Seiko SLGH005
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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.

Celestial Tourbillon

SLGH005
Diameter
42mm
40mm
Lug-to-Lug
n/a
47mm
Thickness
10.8mm
lowest
11.7mm
Water Resistance
100m
100m
Power Reserve
35h
80h
highest
MSRP
$850
lowest
$9,800
Movement
Miyota 8215
Grand Seiko 9SA5
Case
3 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Filippo Loreti Watches Celestial Tourbillon is praised for its beautiful turquoise dial and elegant movement construction that belies its $850 price. Owners note the 42mm steel case, while comfortable, feels slightly thicker than necessary at around 14mm to 14.3mm, with a lug-to-lug of 49.5mm. The dial lacks hand markers, which some find makes precise timekeeping difficult despite the visual appeal of the tourbillon. Overall, owners and reviewers rate the Filippo Loreti Watches Celestial Tourbillon well for its visually striking dial and attractive movement finishing at its price point.
Grand Seiko SLGH005 owners and reviewers praise its stunning "White Birch" textured dial, exquisite finishing, and mirror-polished indexes and hands. The 40mm stainless steel case is noted as slender and well-sized, with surfaces that hide scratches well. The innovative Caliber 9SA5 movement is highlighted for its three-dimensional design and 80-hour power reserve. Some owners report accuracy deviations outside Grand Seiko's internal guidelines, with one experiencing +11 seconds per day. A micro-adjustable bracelet is also a desired feature, and the white dial can be challenging in low light. Overall, owners and reviewers rate the Grand Seiko SLGH005 highly for its exceptional dial texture and finishing at its price point.
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