Seiko Quartz - Diver

I need a new battery for this Seiko 5H26-7A19 - does anyone know what it takes before I attempt to open up the rear, so I can purchase one? I dont want to leave it too long in case of a leak, its from the 90's and the watch was once issued to the US navy.. (so I am led to believe)



Thanks, Stephan.

Qtronic wrote:I need a new battery for this Seiko 5H26-7A19 - does anyone know what it takes before I attempt to open up the rear, so I can purchase one? I dont want to leave it too long in case of a leak, its from the 90's and the watch was once issued to the US navy.. (so I am led to believe)



Thanks, Stephan.

i think you will find its a Renata or Seikosha 370

quite rare watches now especially in good condition

Thanks, so would that be a 370 / 371 Silver Oxide in size etc?

Stephan.

Qtronic wrote:Thanks, so would that be a 370 / 371 Silver Oxide in size etc?

Stephan.

yes should be, both are basically the same but the 371 has a higher output meant for chronographs if i recall right, but you can put it in a basic analogue and then should last about 6 years..maybe more

Perfecto, thanks I will get one on order :-)