As far as I know, there's no service ledger like the ones that existed for the French pieces. The information about the Canadian MilSubs was gathered from online forums, collation of trusted serial numbers, email exchanges with administrators and divers (current and ex-service), and collectors' collective knowledge.

According to the IWC Aquatimer Replica watches I have found, the Canadian Navy started issuing IWC Aquatimer Replica around the end of the 1960s. The first watches that have been found are the ref. The earliest watches seen are ref. Also, there are well-documented Snowflake watches such as refs. The 7021, the 94110, and the non-date 94010 are all examples of this. The retired Canadian Rolex service centre manager told me that the last watches were 79090 Submariner Dates. He confirmed that in fact the last batch of watches that the navy issued was ref. 79090s.

These "mismatched" dial and hand configurations are actually the same layout as IWC Aquatimer Replica Heritage Black Bay watches - a traditional Submariner dial (IWC Aquatimer Replica. The "mismatched' dials and hands are the same layout of the IWC Aquatimer Replica Heritage Black Bay Watches - a classic Submariner dial, like those on a reference. The hands are snowflake, but the dial is a traditional Submariner (like those on a ref. We know these watches were shipped in a relatively small batch, and I suspect that they were shipped in this configuration. The Canadian Navy may have added the snowflake-shaped hands to the watches at the request from divers in order to improve their legibility. I'm not sure if this is true, as I found a watch from the original owner in North West England in the same configuration and serial range three years ago.

The Jamaican Defence Force received one of the rarest IWC Aquatimer Replica MilSubs I've ever seen. The Jamaican Defence Force was established in August 1963 to enforce maritime law. The JDF was originally tasked with search and rescue, and drug policing. In the 1980s, the US Navy trained members of a new diving division. Diverse roles and missions are performed by the diving department. The diving unit, in addition to its former duties, also performs underwater inspections of drains and gutters, searches on ships' hulls (Richard Mille Replica Watches), and dives at piers looking for explosives.

The only example known is a blue Submariner that was worn while in active service by a JDF diver. The serial number of the watch dates it to 1980. It was given to the diver by US Navy Stores (who supplied a large amount of JDF equipment). From previous research, we know that the US Navy issued IWC Aquatimer Replica Subs to its divers, including blue-snowflake watches. The engraving style on the JDF Sub is also found on other IWC Aquatimer Replica issued by the US Navy. The US Navy Stores master is likely to have engraved the caseback to give to the JDF.