Jaeger-LeCoultre Master Ultra Thin Moon 36 mm

Reference Q1248420 · Classic · 36 mm

Illustration drawn from the specifications: case to scale, colours and style approximate. Not a photo. Photos on the official page

Specifications

Official product page · retrieved October 16, 2026

Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.

Wrist circumference (cm)

Top view on a wrist, to scale

Side view, across the wrist

No lug-to-lug figure exists for this reference yet, so fit cannot be computed.

Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.

Value	Type	Source	Date
9.4 mm	Official	Jaeger-LeCoultre	October 16, 2026

No source gave this figure yet.

Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.

No source gave this figure yet.

Official Jaeger-LeCoultre · retrieved October 16, 2026

Watch	Ø	Thickness	Lug-to-lug	Calibre
Master Ultra Thin Date Q1238421	39 mm	7.89 mm	—	899
Master Ultra Thin Moon 39 mm Q1368430	39 mm	9.3 mm	—	925
Master Ultra Thin Perpetual Calendar Q114842J	39 mm	9.2 mm	—	868
Master Ultra Thin Small Seconds Q1218420	39 mm	8.1 mm	—	896

Watch	Ø	Thickness	Lug-to-lug	Calibre
Rendez-Vous Classic Moon Q3578131	34 mm	9.42 mm	—	925
Rendez-Vous Classic Night & Day Q3448111	34 mm	8.63 mm	—	898
Master Control Calendar Q4148120	40 mm	10.95 mm	—	866
Master Control Date Q4018421	40 mm	8.78 mm	—	899
Master Control Memovox Q411843J	40 mm	12.39 mm	—	956
Reverso Classic Duoface Small Seconds 42.9 × 25.5 mm Q2458422	25.5 mm	10.31 mm	42.9 mm	854

Show 20 more

Watch	Ø	Thickness	Lug-to-lug	Calibre
Reverso Classic Duoface Small Seconds 47 × 28.3 mm Q3848422	28.3 mm	10.34 mm	47 mm	854
Reverso Classic Monoface 35.78 × 21 mm Q2618540	21 mm	7.4 mm	35.78 mm	657
Reverso Classic Monoface 40.1 × 24.4 mm (calibre 657) Q2518140	24.4 mm	7.56 mm	40.1 mm	657
Reverso Classic Monoface 40.1 × 24.4 mm (calibre 822) Q2548140	24.4 mm	7.56 mm	40.1 mm	822
Reverso Classic Monoface Small Seconds Q2438522	25.5 mm	7.46 mm	42.9 mm	822
Reverso Tribute Duoface Calendar Q3918420	29.9 mm	10.9 mm	49.4 mm	853
Reverso Tribute Duoface Small Seconds Q3988482	28.3 mm	10.3 mm	47 mm	854
Reverso Tribute Duoface Tourbillon Q392845J	27.4 mm	9.14 mm	45.5 mm	847
Reverso Tribute Monoface Q7168420	24.4 mm	7.56 mm	40.1 mm	822
Reverso Tribute Small Seconds Q397848J	27.4 mm	8.51 mm	45.6 mm	822
Polaris Automatic Q9008170	41 mm	11.2 mm	—	898
Polaris Perpetual Calendar Q9088180	42 mm	13.07 mm	—	868
Master Control Chronograph Calendar Q4138130	40 mm	12.05 mm	—	759
Master Control Geographic Q4128421	40 mm	10.96 mm	—	939
Polaris Chronograph (calibre 751) Q9028170	42 mm	11.92 mm	—	751
Polaris Chronograph (calibre 761) Q9028181	42 mm	13.39 mm	—	761
Polaris Date Q906863J	42 mm	13.92 mm	—	899
Polaris Geographic Q9078640	42 mm	11.54 mm	—	939
Polaris Mariner Date Q9068180	42 mm	13.92 mm	—	899
Polaris Mariner Memovox Q903818J	42 mm	15.63 mm	—	956