I'm obviously confused, but in looking at both this alternative chrono and the one from the stock game (at least I assume it is from the screenshot I saw posted - my copy of SH4 is still in transit

), they both look to me more like regular clocks rather than stop watches, which is what I would think you would need to use in a sub to measure elapsed time for torpedo runs, speed of enemy contacts, etc. - I would expect them to look more like this picture:
Unfortunately, that was from an eBay auction and I haven't been able to locate a definitive picture of a US Navy submarine chrono to confirm so I don't know what is correct here, but I'm having trouble figuring out how the game's version or the alternative version in the first post of this thread would actually work well as a stop watch for these purposes. :hmm:
Anyone who knows care to try to dispel my confusion?