How thick is the SOSF crystal?

[Fireman_Fred]

A while ago, I owned a Citizen 1000m Promaster NH6930-09E Pro Diver's watch. It was a HUGE watch and monstrously thick. To withstand pressures of up 100Bar (at 1000m), the crystal was 6mm thick (which wouldn't look out of place on the bottom of a Coca-Cola bottle !!). Looking at the crystal on my SOSF and pictures of the gen, it is apparent that it is not much thicker than that found on a non diving watch. It amazed me that a watch, that can purportedly function at depths of 2000m, can be as stylish and slim as the SOSF - How do Breitling do it ?? !!

The Citizen Promaster Pro Diver's Watch with 6mm thick crystal.

[hyster]

According to one of our dealers, "FRONT GLASS: 5mm Thick Sapphire with AR".

[cc]

and Hyster is correct.

[bigpops]

The reason it doesn't look thick, is that the front and back of the crystal are both curved equally, so it's the same thickness accross the whole crystal. This stops the lens effect you get on many watches (eg, a PAM111) when you look at them from an angle, rather than head on.

[lanikai]

This may be a totaly redundant post,.. but those depths are really reserved for the "elite" divers ... i haven't been deeper than 200 ft. about 66 meters so when I see even 300 meters .. it really goes over my head....so to speak

[Fireman_Fred]

According to one of our dealers, "FRONT GLASS: 5mm Thick Sapphire with AR".

Thanks Hyster, I hadn't seen that and the crystal certainly doesn't look that thick (as bigpops has alluded to) but, as I said in my initial post, the Citizen is HUGELY thick in comparison to the SOSF and it is ONLY tested to 100Bar ! You would never know, by looking at it (apart from the tiny writing on the dial saying "2000m/6600ft") that this is a serious diver's watch capable of withstanding pressures up to 200Bar ! !