After collecting as many serials I could find (still collecting ), I managed to derivate a list of serials and matching references and also a assumption of production numbers in the end.

Since there is are a lot of definitions of MKI , MKIc or MK IV out there, I tried to tie these classifications on serial charges and building dates.

(please scroll horizontal within the table on mobile devices – last edited 11/12/2019)

Enicar Sherpa Graph

Model Ref. Serial Range Date
Sherpa Graph MK I 1308 BaNCH 272.5xx- 272.9xx 5/60
Sherpa Graph MK Ib 1308 BaNCH 409.2xx – 409.6xx 11/61
Sherpa Graph MK Ic 1308 BaNCH 526.0xx – 528.0xx 4/62
Sherpa Graph MK Id 1308 BaNCH 561.7xx – 562.1xx 6/62
Sherpa Graph MK II 072/001 601.5xx – 601.9xx
617.1xx – 617.5xx
246.1xx – 246.6xx (serial anomaly)
63 (estimated)
63 (estimated)
63 (estimated)
Sherpa Graph MK III 072-02-01 635.9xx
641.xxx
835.1xx – 836.2xx
906.4xx
908.0xx – 908.8xx
940.5xx – 941.4xx
63 (estimated)
63 (estimated)
65 (estimated)
66 (estimated)
66 (estimated)
6/66
Sherpa Graph MK IV 072-02-01 1.030.1xx  – 1.030.8xx
1.261.7xx – 1.263.3xx
9/67
11/68

Enicar Aqua Graph

ModelRefSerial RangeDate
Aqua Graph MK Ia 072/002 635.2xx – 635.6xx 63 (estimated)
Aqua Graph MK Ib 072/002 706.6xx – 706.8xx
722.2xx – 722.5xx
64 (estimated)
64 (estimated)
Aqua Graph MK II 072-02-02 906.9xx – 907.4xx 6/66
Aqua Graph MK III 072-02-02 986.5xx – 987.3xx 6/67
Aqua Graph MK IV 072-02-02 1.070.2xx – 1.070.9xx
1.317.6xx – 1.321.8xx
3/68
5/69

Enicar Jet Graph

ModelRef.Serial RangeDate
Jet Graph MK Ia 072/002 626.7xx – 627.0xx 63 (estimated)
Jet Graph MK Ib 072/002 721.9xx64 (estimated)
Jet Graph MK II 072-02-02 927.3xx 6/66
Jet Graph MK III 072-02-02
072-02-02A
986.8xx
1.069.9xx – 1.070.9
1.263.4xx –
1.305.2xx – 1.305.9xx
6/67
3/68
11/68
5/69
Jet Graph MK IV 072-02-02A 1.317.1xx – 1.322.0xx
1.622.2xx
627.1xx
8/69
?
8/69

Enicar Super Graph

ModelRef.Serial RangeDate
Super Graph MK I072/002 626.6xx
635.8xx
706.8xx
907.1xx
63 (estimated)
63 (estimated)
64 (estimated)
66 (estimated)

Production Numbers

(will be updated with new data base)

Sherpa Graph:

Enicar Sherpa Graph Ia: 500 watches
Enicar Sherpa Graph Ib: 700 watches
Enicar Sherpa Graph Ic: 600+ watches
Enicar Sherpa Graph Id: 500 watches

Enicar Sherpa Graph II: 1500 watches

Enicar Sherpa Graph III: 3.200 watches

Enicar Sherpa Graph IV: 2.400 watches

Total: 9.400+ watches

Aqua Graph:

Enicar Aqua Graph Ia: 500 watches
Enicar Aqua Graph Ib: 700 watches

Enicar Aqua Graph II: 600 watches

Enicar Aqua Graph III: 900+ watches

Enicar Aqua Graph IV: 1.900+ watches

Total: 4.600+ watches

Jet Graph:

Enicar Jet Graph Ia: 400 watches
Enicar Jet Graph Ib: 100 watches

Enicar Jet Graph II: ? (not sufficent data yet)

Enicar Jet Graph III: 500+ watches

Enicar Jet Graph IV: 2.300+ watches

Total: 3.300+ watches

Super Graph:

No Idea yet, since there a so less around there. My guts tells me not more than 500 in total, maybe less.