Military pattern Aircraft cockpit clocks homages

One homage of the Aircraft cockpit clocks, drawn to scale beside it with price, movement and size.

Width not listed yet1 homage

Aircraft cockpit clocks, generic case outline. Width unknown, 40 mm placeholder.

Drawn as a case outline.

The one homage

The only homage of the Aircraft cockpit clocks on Bewrist so far.

Sizes and specifications apply to the version named below. Other versions can differ.

Waltham A-13A-2 aircraft panel clock (P/N 400202)

Concrete A-13A-2 sample described and measured in a specialist hands-on source; dimensions do not establish the A-13A-1 or all MIL-C-6499 variants.

Specifications for Waltham A-13A-2 aircraft panel clock (P/N 400202)
Specification	Value	Sources and notes
Case width	60.325 mm	Waltham A-13A Aircraft Clock \| Ken Rockwell One cited source. Source version Waltham A-13A-2 aircraft panel clock (P/N 400202). A-13A-2 reviewer sample is 2.375 in square externally (60.325 mm).
Lug to lug	Not confirmed	Waltham A-13A Aircraft Clock \| Ken Rockwell Panel clock mounts in an aircraft instrument panel and has no wrist lugs.
Thickness	48.006 mm	6645-00-150-6526 - PANEL CLOCK \| WBParts 6645-00-150-6526 - CLOCK,PANEL \| NSN Depot Sources agree. Source version Waltham A-13A-2 aircraft panel clock (P/N 400202). Nominal overall depth is 1.890 in (48.006 mm) in NSN records for A13A2 / P/N 400202; retain the mounting-depth basis because the object is a panel clock.
Lug width	Not confirmed	Waltham A-13A Aircraft Clock \| Ken Rockwell Panel clock has no strap attachment/lug interface.

Sources and unconfirmed details