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)

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 561.8xx – 562.1xx 6/62
Sherpa Graph MK II 072/001 601.5xx – 601.9xx
617.2xx – 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 072/002 635.3xx – 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 I 072/002 626.7xx – 626.9xx 63 (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: 400 watches

Enicar Sherpa Graph II: 1400 watches

Enicar Sherpa Graph III: 3.200 watches

Enicar Sherpa Graph IV: 2.400 watches

Total: 9.200+ watches

Aqua Graph:

Enicar Aqua Graph Ia: 400 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: 4.500+ watches

Jet Graph:

Enicar Jet Graph Ia: 300 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: 3.200+ 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.