La Joux-Perret G100

Manufacture La Joux-Perret · Automatic · Premium tier · Family: La Joux-Perret G100

Citizen-owned La Joux-Perret's own 4 Hz automatic, sold as a long-running alternative to the ETA 2824 / SW200 (MLJP lists dimensional compatibility with both; not an ETA clone, and parts are not interchangeable). MLJP product page: Ø25.6 × 4.45mm (encasing Ø26.00mm), 24 jewels, 4 Hz, 68h power reserve, unidirectional automatic winding, stop-second, hours/minutes/seconds with date. Power reserve was raised in 2020-21 (the FHS announcement said "more than 60 hours"; 68h is the current figure). Caliber Corner adds hand winding, KIF shock protection, ETACHRON-style regulator with fine adjustment and a tungsten rotor, and describes the architecture as related to the Miyota 9015 (both Citizen group). G101 is the no-date version. MLJP does not publish grade accuracy on the product page; the grades above are from Caliber Corner.

Watches with the La Joux-Perret G100

Watch	Price from	Movement	Dia. mm	Thick mm	Crystal	Micro-adjust
Zelos Spearfish 40mm 12Hr	$749	La Joux-Perret G100	40	—	Sapphire	On-the-fly
Zelos Spearfish 40mm Diver	$749	La Joux-Perret G100	40	—	Sapphire	On-the-fly
Zelos Eagle 2 Ti	$899	La Joux-Perret G100	39	—	Sapphire	no bracelet
Astor+Banks Field Watch	$995	La Joux-Perret G100	38.5	12.4	Sapphire	no bracelet
Astor+Banks Sea Ranger M2	$1,149	La Joux-Perret G100	40	12.5	Sapphire	On-the-fly
Synchron Poseidon	$1,290	La Joux-Perret G100	42	—	Sapphire	no bracelet
Synchron Ti300M (LJP G100)	$1,490	La Joux-Perret G100	41	11.9	Sapphire	no bracelet
Furlan Marri Cornes de Vache Sector 37.5mm	$1,515	La Joux-Perret G100	37.5	10.5	Sapphire	no bracelet
March LA.B AM69 Automatique	$1,678	La Joux-Perret G100	36	12.5	Sapphire	—
March LA.B AM89 Automatique	$1,678	La Joux-Perret G100	38	14.5	Sapphire	—
March LA.B Bonzer Automatique	$1,847	La Joux-Perret G100	41	12.25	Sapphire	—
ELKA D Series 40.8mm	$1,902	La Joux-Perret G100	40.8	—	Sapphire	—
ELKA X Series	$1,902	La Joux-Perret G100	40.8	—	Sapphire	—
ELKA X Series No Date	$1,902	La Joux-Perret G100	40.8	—	Sapphire	—
March LA.B Mansart Automatique	$1,903	La Joux-Perret G100	34	11	Sapphire	—
March LA.B AM2 Automatique (LJP G100)	$1,959	La Joux-Perret G100	39	12.5	Sapphire	—
March LA.B AM2 Slim Automatique	$1,959	La Joux-Perret G100	36	11.32	Sapphire	—
Furlan Marri Red Hunter 36mm	$2,000	La Joux-Perret G100	36	11.6	Sapphire	—
March LA.B Belza	$2,015	La Joux-Perret G100	40	14.5	Sapphire	—
ELKA S Series 40.8mm No Date	$2,080	La Joux-Perret G100	40.8	—	Sapphire	—
March LA.B AM2 Bronze	$2,239	La Joux-Perret G100	39	11.7	Sapphire	no bracelet
March LA.B AM2 Slim Bronze	$2,239	La Joux-Perret G100	36	11.32	Sapphire	no bracelet
Furlan Marri Outback Songlines 39mm	$2,242	La Joux-Perret G100	39	12.06	Sapphire	—
March LA.B Bonzer Bronze	$2,352	La Joux-Perret G100	41	12.25	Sapphire	no bracelet
March LA.B Belza Bronze	$2,464	La Joux-Perret G100	40	14.5	Sapphire	no bracelet
March LA.B AM2 Titane	$2,576	La Joux-Perret G100	39	11.5	Sapphire	—
March LA.B Belza Titane	$2,576	La Joux-Perret G100	40	14.5	Sapphire	no bracelet
Straum Expedition	$2,750	La Joux-Perret G100	38.2	11	Sapphire	On-the-fly
March LA.B AM2 Carbone	$2,801	La Joux-Perret G100	38	12.8	Sapphire	no bracelet
Fears Redcliff 39.5 Date	$3,277	La Joux-Perret G100	39.5	9.98	Sapphire	On-the-fly
Fears Brunswick 40 (LJP G100)	$3,721	La Joux-Perret G100	40	11.9	Sapphire	—
Fears Redcliff 39.5 ES	$3,721	La Joux-Perret G100	39.5	10.37	Sapphire	—
Kieser Design tragwerk2.0 BLACK	$7,510	La Joux-Perret G100	42	—	Sapphire	—
Furlan Marri Secular Perpetual Calendar	$157,570	La Joux-Perret G100	39	11.3	Sapphire	—

Sources

• Manufacture La Joux-Perret, G100 product page
• Federation of the Swiss Watch Industry FH, G100 and L100 movements by La Joux-Perret
• Caliber Corner, La Joux-Perret caliber G100