La Joux-Perret D100
Factory specs
- Caliber
- D100
- Made in
- Switzerland
- Frequency
- 21,600 bph (3 Hz)
- Power reserve
- 50 h
- Jewels
- 18
- Hacking
- No
- Hand winding
- Yes
- Accuracy
- —
- Diameter
- 23.3 mm
- Height
- 2.5 mm
- Functions
- Hours, Minutes, Small seconds
- Same family
- La Joux-Perret D101
La Joux-Perret's thin 10½-ligne hand-wound caliber with small seconds at 6. MLJP product page ("Heure, minute, avec petite seconde"): Ø23.3 × 2.5mm, encasing Ø23.7mm, dimensionally compatible with the Peseux 7001, 3 Hz, no stop-second ("Stop seconde: sans"), 50h power reserve, manual winding, 18 jewels. Farer describes it as "based on the venerable Peseux 7001" (see eta-7001, whose file notes it as that caliber's successor). MLJP does not publish grade accuracies on the product page; Farer sells it in the "soigné" grade, adjusted in 4 positions.
Watches with the La Joux-Perret D100
| Watch | Price from | Movement | Dia. mm | Thick mm | Crystal | Micro-adjust |
|---|---|---|---|---|---|---|
 Farer Lissom |
$1,533 | La Joux-Perret D100 | 38 | 7.95 | Sapphire | — |
 Fears Brunswick 38 (LJP D100) |
$3,721 | La Joux-Perret D100 | 38 | 11.84 | Sapphire | — |
 Fears Brunswick 38 Sterling Silver |
$4,388 | La Joux-Perret D100 | 38 | — | — | no bracelet |
 Fears Brunswick 38 Pt |
$27,994 | La Joux-Perret D100 | 38 | 12.12 | Sapphire | — |