IWC Mk 11 Notes and Links

Warning: Do NOT take what is written here as cast in stone. Mistakes are possible.

Introduction

This page is intended to summarize some information on the IWC Mk 11 wristwatch. The information here has been obtained by searching the internet and just observing examples and reading threads / articles I come across.

No Pictures

I am currently NOT publicly hosting pictures on this site for these watches.

I may link to external sites that do contain pictures of these watches.

External Threads / Articles Links

[1] The classic 'Man is Not Lost' article on this wristwatch.

[2] A MWR Forum Thread on Mk 11 Issue Numbers and a bit more.

[3] An IWC Forum Thread with a lot of info on the BOAC version.

[4] An IWC Forum Thread on the Civilian Version (1).

[5] A MWR Forum Thread on the Civilian Version (2).

[6] An IWC Forum Thread on the English Electric Lightning IWC Gun Camera Watch (1).

[7] A MWR Forum Thread mentioning Huguenin Freres.

[8] An IWC Forum Thread on case types.

[9] A link to a classicwatch.com New Zealand 56 example.

[10] An article on the Australian 57 version.

[11] An IWC Forum Thread on the English Electric Lightning IWC Gun Camera Watch (2).

[12] A MWR Thread on the history of a 1952 IWC Mk 11.

[13] A web site with some info on the SAAF versions.

[14] An IWC Forum Thread mentioning the Hamilton dial.

[15] New An IWC Forum Thread about an outstanding IWC Mk 11 collection.

Details

Type Caseback Markings Stats Comments
British 48
Broad Arrow
6B / 346
# / 48
  • Low # seen: 101
  • High # seen: 2006
[2] indicates a High # seen as 2065.


  • Broad Arrow on Dial: Yes
  • Broad Arrow on Movement: Yes
  • Movement has Incabloc: No
  • Regulator Markers: F / S
British 50
Broad Arrow
6B / 346
# / 50
  • Low # seen: 312
  • High # seen: 924
[2] indicates a High # seen as 948.


  • Broad Arrow on Dial: Yes
  • Broad Arrow on Movement: Yes
  • Movement has Incabloc: Yes
  • Regulator Markers: F / S
British 51
Broad Arrow
6B / 346
# / 51
  • Low # seen: 157
  • High # seen: 2088
[2] indicates a Low # seen as 118.


  • Broad Arrow on Dial: Yes
  • Broad Arrow on Movement: Yes
  • Movement has Incabloc: Yes
  • Regulator Markers: F / S
British 52
Broad Arrow
6B / 346
# / 52
  • Low # seen: 181
  • High # seen: 2334
[2] indicates a Low # seen as 106.
[2] indicates a High # seen as 2294.


  • Broad Arrow on Dial: Yes
  • Broad Arrow on Movement: Yes
  • Movement has Incabloc: Yes
  • Regulator Markers: F / S
New Zealander RNZAF
R.N.Z.A.F.
#
  • Low # seen: 103
  • High # seen: 144
[15] (page 2 comment)
indicates this version is from 1949.


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: ?
  • Movement has Incabloc: Yes
  • Regulator Markers: ?
New Zealander 56
6B / 346
# / 56
  • Low # seen: 114
  • High # seen: 148
[9] indicates a batch of 150 of these existed.


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: ?
  • Movement has Incabloc: Yes
  • Regulator Markers: ?
Australian 57
G6B / 346
# / 57
  • Low # seen: 8
  • High # seen: 308
[10] contains a lot of information on
the Australian 57 version.

[10] indicates a High # seen as 600.


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: No
  • Movement has Incabloc: Yes
  • Regulator Markers: + / -
South African 61 (v1)
S.A.A.F.
6B / 346
AF yyyy
# / 61
  • Low # seen: 275
  • High # seen: 349

  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: No
  • Movement has Incabloc: Yes
  • Regulator Markers: + / -
South African 61 (v2)
S.A.A.F.
6B / 346
# / 61
AF yyyy
  • Low # seen: 138(?)
  • High # seen: 241(?)

  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: No
  • Movement has Incabloc: Yes
  • Regulator Markers: + / -
South African AF Only
AF yyyy
  • Low yyyy seen: 9405
  • High yyyy seen: 9538

  • Broad Arrow on Dial: (Should be) No
  • Broad Arrow on Movement: No
  • Movement has Incabloc: Yes
  • Regulator Markers: + / -
BOAC CS (v0)
B.O.A.C.
CS. 131 / 83 / #
  • Low # seen: 12
  • High # seen: 37
[3] (Page 3 of thread) indicates CS. stands
for Cartographic Section.

I have been informed, via email, from a very
knowledgeable collector, that this is the first
version of the BOAC Mk 11 and all originally
had the "white 12" dial. The other versions are
more recent and had the triangle at the "12"
position.


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: No
  • Movement has Incabloc: Yes
  • Regulator Markers: F / S
BOAC Pr (v1)
B.O.A.C. Property
#
  • Low # seen: 1371999
  • High # seen: 1446414
See comments for version 2 (v2) below.


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: No (but not sure)
  • Movement has Incabloc: Yes
  • Regulator Markers: ?
BOAC Pr (v2)
SER. NO. #
B.O.A.C. PROPERTY
  • Low # seen: 1435000
  • High # seen: 1435000
[3] (Page 5 of thread) indicates that the #
number corresponds to the (original)
movement number that the watch contained.


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: No (but not sure)
  • Movement has Incabloc: Yes
  • Regulator Markers: ?
Civilian
( no markings )
[4] indicates the Civilian version is a Ref 2612.

[5] is another thread on the Civilian Version.

[7] has pictures of a Huguenin Freres caseback.


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: No
  • Movement has Incabloc: Yes
  • Regulator Markers: + / -
English Electric Lightning
[Broad Arrow]
10AF / 807
N. I. #
  • Low # seen: 080
  • High # seen: 484
[6] details what is referred to as
IWC RAF 'Gun Camera Watch'
or perhaps just an
IWC RAF 'Camera Watch'.

[11] indicates 10AF is a Store Ref. No. meaning
"instrument related to radar equipment and
for calculating and measuring"

Note that for the caseback markings,
there exist versions with and without
the Broad Arrow.

Note also that for the "N I" caseback markings,
there exist versions with and without
the dots following the "N" and the "I".


  • Broad Arrow on Dial: No
  • Broad Arrow on Movement: Some with some without.
  • Movement has Incabloc: Some Yes Some No
  • Regulator Markers: + / -

Dials

Identifier Description
White 12 Arabic '12' at the 12 o'clock position
Broad Arrow under the '12'
SWISS under the '6'
Broad Arrow Only Triangle at the 12 o'clock position
Broad Arrow under the '12'
SWISS under the 6
Circle T Triangle at the 12 o'clock position
Broad Arrow under the '12'
'T' in a circle above the '6'
SWISS under the 6
Circle T, T SWISS T Triangle at the 12 o'clock position
Broad Arrow under the '12'
'T' in a circle above the '6'
'T SWISS T' under the '6'
T SWISS T (no BA) Triangle at the 12 o'clock position
*No* Broad Arrow under the '12'
'T SWISS T' under the '6'
Hook 7 Triangle at the 12 o'clock position
Broad Arrow under the '12'
'T' in a circle above the '6'
'SWISS' under the '6'
The font on the '7' has a "hook" as opposed to a flat top
No Broad Arrow Triangle at the 12 o'clock position
No Broad Arrow under the '12'
'SWISS' under the '6'

Cases

[8] indicates that there are at least two case types.