Updated Data Sheet for the Antarctic

 

The Road Rat - A Chronomaster Glimpsed?

Issue 11 of The Road Rat includes a feature on '50s/'60s U.S. racing driver, Walt Hansgen.  The article include the photograph of Walt seen below.  Author Colin Goodwin suggests that the watch Walt is wearing is a Tudor, but it looks to me like a Nivada Grenchen Chronomaster Aviator Sea Diver. Wonder if anyone here can confirm please?

Further Diver's Data Sheet Update - two Depthomatics

 

Updated Data Sheet for Divers

 

Some interesting detail points of dial difference between DBND013 and 012.  At the time of posting there are eight bids for 013, the highest being £700.

Updated Data Sheet for the Antarctic

 

Not seen one like this last addition - does anyone know anything about the model please?

Updated Diver Data Sheet

 A watch in pleasingly 'used' condition:

The vendors, Arthur Johnson & Sons, also provide an image of the movement:

Data Sheet for the Antarctic

Just noticed that I've neglected to establish, let alone update, a data sheet for the Antarctic model.

So here is a first version, including five examples where I have previously found an image but do not have to hand links to references which would provide text details of their specification/characteristics.  If anyone seeing this has any information - or knowledge of relevant sources - on any of these watches, I'd be very grateful to hear from them.