None compatible models with the Catalyst Case for 38mm Apple Watch Series 3/2 - (Waterproof / Impact Protection)

To determine the size of your Apple check the engraving on the back. 

Find the Model of your Apple Watch

1. First, open the Settings app on your Apple Watch. 
2. Go to General menu.
3. Scroll down and now you can find the Model Number.
4. Tap the Model Number to check the specific version.
   
   

   

   These Apple Watch Models are not compatible with the Catalyst Case for 38mmApple Watch Series 3/2.
   
   Apple Watch Ultra  
   Models: 
   A2859 : MNHQ3CH/A
   A2684 : MNHJ3B/A
   A2622 : MNHC3LL/A
   
   45mm Apple Watch Series 8
   Models: 
   A2858 : MNNW3CH/A, MNK83CH/A
   A2775 : MNNT3B/A, MNK73B/A
   A2774 : MNNR3LL/A, MNVP3LL/A
   A2772 : MNN03LL/A
   A2771 : MNUP3LL/A
   
   
   41mm Apple Watch Series 8
   Models: 
   A2857 : MNN23CH/A, MNJ03CH/A
   A2773 : MNN13B/A,  MNHY3B/A
   A2772 : MNN03LL/A, MNUX3LL/A
   A2771 : MNUP3LL/A
   A2770 : MNU93LL/A
   
   
   45mm Apple Watch Series 7
   Models: 
   A2478 : ML8Y3B/A, MKMV3B/A, MKL43B/A, MKJX3B/A
   A2477 : ML8W3LL/A, MKMG3LL/A, MKJF3LL/A
   A2474 : MKNA3LL/A, MKN73LL/A
   
   
   41mm Apple Watch Series 7
   Models: 
   A2476 : ML913B/A, MKLY3B/A, MKJ33B/A, MKHY3B/A
   A2475 :  ML8U3LL/A, MKHL3LL/A, MKHG3LL/A
   A2473 : MKN33LL/A, MKN03LL/A
   
   
   44mm Apple Watch SE (Gen 2/1)
   Models: 
   A2352 : MYDR2LL/A
   A2354 : MYEP2LL/A, MG063LL/A
   A2356 : MYEX2B/A, MG0A3B/A
   A2352 : MYYK2LL/A
   
   
   40mm Apple Watch SE (Gen 2/1)
   Models: 
   A2353 : MYEA2LL/A, MYYU2LL/A
   A2355 : MYEH2B/A, MG013B/A
   A2351 : MYYF2LL/A, MYDN2LL/A
   
   
   44mm Apple Watch Series 6
   Models: 

   A2292 : M00J3LL/A, MG173LL/A
   A2294 : M07J3LL/A, MG2J3LL/A, MG323LL/A, M0GJ3LL/A
   A2376 : M09A3B/A, M09Y3B/A, MG3A3B/A, M0H23B/A
   

   40mm Apple Watch Series 6
   Models: 

   A2291 : MG143LL/A, M00X3LL/A
   A2293 : M02R3LL/A, M06L3LL/A, MG2Y3LL/A, M0DH3LL/A
   A2375 : M06Q3B/A, M07E3B/A, MG343B/A, M0DY3B/A
   

   44mm Apple Watch Series 5
   Models: 

   A2092 : MWV82LL/A
   A2094 : MWWQ2LL/A,
   A2157*: MWWE2B/A, MX3E2B/A, MWWM2B/A, MWR62B/A*
   A2093 : MX3V2LL/A
   A2095*: MX392LL/A, MWW92LL/A, MWQT2LL/A*

   40mm Apple Watch Series 5
   Models: 

   A2093 : MWVF2LL/A
   A2095 : MWW12LL/A
   A2156 : MWX32B/A
   A2092 : MX3R2LL/A
   A2094 : MX372LL/A, MWX02LL/A, MWQ12LL/A
   A2156 : MX3C2B/A, MWXC2B/A, MWQE2B/A
   
   

   44mm Apple Watch Series 4
   Models: 

   A2008 : MU782B/A, MTXK2B/A, MTVR2B/A
   A1976 : MU6X2LL/A, MTXC2LL/A, MTUU2LL/A
   A1978 : MU6K2LL/A, MU6A2LL/A
   
   

   40mm Apple Watch Series 4
   Models: 

   A2007 : MU702B/A, MTVA2B/A
   A1975 : MU6N2LL/A, MTV92LL/A, MTUD2LL/A
   A2007 : MTX62B/A
   A1977 : MU6H2LL/A, MU642LL/A
   
   

   42mm Apple Watch Series 3
   Models: 

   A1891 : MQM52B/A, MQMW2B/A, MQME2B/A, MQKM2B/A
   A1861 : MQKD2LL/A, MQLU2LL/A,MQLC2LL/A, MQK12LL/A,
   A1892 : MQRT2CH/A, MQRG2CH/A, MQQR2CH/A
   A1859 : MQL32LL/A, MQL02LL/A
   
   

   38mm Apple Watch Series 3 Ceramic*
   Models: 

   A1890* : MQQP2CH/A*
   A1889* : MQM32B/A*, 
   A1860* : MQJY2LL/A*

   
   42mm Apple Watch Series 2
   Models: 

   A1817* : MNPQ2LL/A*, MNQC2LL/A,
   A1758 : MP0A2LL/A, MNPJ2LL/A,
   
   

   38mm Apple Watch Series 2
   Models: 

   A1816* : MNPF2LL/A*
   
   

   42mm Apple Watch Series 1
   Models: 

   A1803 : MNNL2LL/A

   
   38mm Apple Watch Series 1
   Models: 

   A1802 : MNNG2LL/A