Oldish Tuna, staggering accuracy

[helidoc]

This is the data for my 2004 SBBN007, -4.6 seconds in 4 months. I’m astounded.


Dave






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[Redcoat]

Have to agree. My SBBN007 has been my most accurate watch from day one. Amazing movement.

[j111dja]

They can be regulated to run at one second a month. Fantastic watches.

[jacinabox]

I love my Tuna's for that reason (amongst others too!) Makes me wonder why I get sucked into this mechanical watch stuff.

What did you use to measure it's timekeeping?
Fancy the ability to do that myself


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[helidoc]

What did you use to measure it's timekeeping?
Fancy the ability to do that myself


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WatchTracker on iPhone. Android has something similar

D


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