Jacques Bianchi · Microbrand · France
Jacques Bianchi JB300 Steel
- Soprod P024
- 42 mm × 12.7 mm
- Sapphire crystal
- 300 m water resistance
Where to buy
- Jacques Bianchi (Bleue)Worldwide
- Jacques Bianchi (Noire)Worldwide
Movement
- Caliber
- Soprod P024
- Type
- Automatic
- Tier
- Upper
- Complications
- Date
- Frequency
- 28,800 bph
- Power reserve
- 38 h
- Hacking
- Yes
- Accuracy (factory)
- —
Case
- Diameter
- 42 mm
- Lug to lug
- 45 mm
- Thickness
- 12.7 mm
- Lug width
- 20 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 300 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- Unidirectional, lumed
- Finishing
- Brushed (satin)
Crystal & dial
- Crystal
- Sapphire
- Shape
- Flat
- Anti-reflective
- —
- Lume
- Super-LumiNova
Bracelet & clasp
- Style
- Jubilee
- Links per row
- 5
- Solid end links
- —
- Solid links
- —
- Link attachment
- —
- Taper
- —
- Quick release
- —
- Half links
- —
- Clasp
- —
- Micro-adjust
- —
- Diver extension
- —
Straps
- Strap 1
- Rubber, Tropic-style rubber strap with steel pin buckle
- Strap 2
- Nylon, Perlon strap, supplied with the Tropic strap
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial | Status |
|---|---|---|
| Bleue | matte navy blue | In production |
| Noire | matte black | Limited (500) |
About this entry
68% of key specs known. Missing: weight, hardening, AR coating, end links, link attachment, clasp micro-adjust.
Steel JB300, launched in 2024 as a re-edition of the 1990s French military diver; the titanium JB300 editions are recorded as JB300 Titanium. Brand specs (both pages): Soprod P024 automatic (42h on the Bleue page; Fratello says 40h), brushed 316L steel, 42mm, screw-down crown at 3 between crown guards, broad-toothed unidirectional bezel with a Super-LumiNova pip, flat sapphire, "Maxi Dial" with 11 Super-LumiNova indices (green emission), 24-hour scale, date at 3, 300m, supplied on a Tropic rubber strap plus a black Perlon. Lug-to-lug 45mm and thickness 12.7mm are from Fratello's launch hands-on, which does not say whether the crystal is included; lug width 20mm is on the Noire page. Fratello gave a launch price of EUR 890 (VAT included), with the Jubilee-style steel bracelet an extra EUR 100; the Bleue page shows that bracelet in one photo. The Noire (sold as "JB300 Diver Noir", 500 numbered pieces, sold out) is described as black PVD in its spec text, but every photo on its page shows an uncoated steel case, matching the black-dial launch model in Fratello's review, so no coating is recorded. The Bleue could be ordered on 2026-10-30. The import of 2026-10-24 read both listings at about 83% of the prices recorded here.
Last verified: 2026-10-30. Edit or correct this entry.
Sources
- Jacques Bianchi, JB300 Bleue product page accessed 2026-10-30
- Jacques Bianchi, JB300 Noire product page accessed 2026-10-30
- Fratello, Hands-on with the new Jacques Bianchi JB300 (November 2024) accessed 2026-10-30