This men’s stainless steel Certina automatic has the red script Superflexo Mainspring on the dial.  Model reference 25006-1

HOW DO WE DATE THIS WATCH?

From the serial number on the inside of the case back we can accurately date this watch to being made in 1953.

CONDITION

Superflexo Mainspring sounds like a complete marketing concoction, however it looks good on the dial and sounds nice.   Besides this name, the watch has a lot of what people want.  The case is early stainless steel, called Staybrite, and it has a screw down caseback as this watch was sold as waterproof back in 1953 (waterproof watches were huge in 1953, when the three watches that tussle to claim to be the first recognisable divers watches were launched – The Rolex Submariner, Blancpain Fifty Fathoms and Zodiac Sea-Wolf).  The lugs are drilled for easy strap changes, and they are what is now a standard size giving you more choice on strap.   The leather strap is new, and could be swapped for a different colour if preferred.  The automatic movement is an in house Certina 25-45, with 21 jewels.  Automatic movements were still still quite an upgrade from the ‘standard’ manual wind watches back in the early fifties, and this has beryllium bronze self winding gears for enhance performance.  This material is still shouted about if used in top end watches now, due to its hardness and anti magnetic qualities.  It clearly is well made, as it is running very nicely now.  The dial has a few marks and the Superflexo Mainspring writing has faded.  At least that shows the dial is original.

This watch will be supplied with our branded presentation box and our Certificate of Authenticity.

Please see the HD video for more detail.  All photos and videos are part of the description and are of the actual watch unless mentioned.  We do not photoshop any pictures, and the images are copyright of birthyearwatches.com and should not be used without permission.

​SIZE

Width with crown  36.4 mm

Width without crown  33.5 mm

Between lugs  18 mm

Lug to lug length  41.0 mm

Case Thickness  11.1 mm

All sizes are approximate.

Included with this watch is a 3 month guarantee and free delivery to UK addresses.  If you live outside the UK we can still deliver to most countries.  Please see our Worldwide Shipping information, or Contact Us.   Payment can be made by most credit or debit cards, bank transfer or PayPal.

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