Watch Stem Extenders

SKU:
Watch Stem Extenders
$2.95 - $12.95
Current Stock:

There are several reasons to use a stem extender:

BROKEN STEM/TOO SHORT: If you still have your original stem but it is broken and too short to use with your crown, you can buy a stem extender to lengthen the original broken watch stem to extend to the correct length that you need for your repair.

POCKET WATCH STEM: If you have a pocket watch stem that has broken off and there is not a pocket watch stem available in a replacement, you can use a watch stem extender to lengthen the stem to fit into the pocket watch.

CHANGE TAP SIZE: You can use an extender that will change the tap (thread) size from a larger or smaller size to a standard tap (thread) size.

REGULAR STEM TO MALE OR FEMALE STEM: Change a regular stem into a male or female stem to fit a one piece case.

  • Inner tap size: original stem diameter Outer tap size: new stem diameter where the crown will attach
  • Sold individually.
  • Choose the stem that you would like from the drop down menu above.

*Sizes are approximate as measurements may vary slightly by gauge.

Part # Inner Tap Outer Tap Type Part # Tap Type  
88.236 Tap 10 (.90mm) Tap 10 (.90mm) Standard Extender - Hub Length 2.5mm 88.128 Tap 10 (.90mm) Female Threaded Post Hub Length 2.3mm to 2.5mm
88.236-L Tap 10 (.90mm) Tap 10 (.90mm) Standard Extender - Hub Length 3.9mm 88.129 Tap 10 (.90mm) Female Threaded Post Hub Length 3.5mm
88.255 Tap 9 (1.00mm) Tap 9 (1.00mm) Standard Extender 88.621 Tap 11 (.80mm) Female Threaded Post Hub Length 2.4mm
88.263 Tap 8 (1.10mm) Tap 8 (1.10mm) Standard Extender 88.627 Tap 6 (1.30mm) Female Threaded Post Hub Length 2.3mm
88.267 Tap 7 (1.20mm) Tap 7 (1.20mm) Standard Extender 88.628 Tap 8 (1.10mm) Female Threaded Post No Longer Available
88.579 Tap 11 (.80mm) Tap 11 (.80mm) Standard Extender 88.639 Tap 9 (1.00mm) Female Threaded Post Hub Length 2.3mm
88.582 Tap 12 (.70mm) Tap 12 (.70mm) Standard Extender        
88.593 Tap 13 (.60mm) Tap 13 (.60mm) Standard Extender 88.180 Tap 10 (.90mm) Male Threaded Post Hub Length w/ Male Tip 1.7mm
88.594 Tap 14 (.50mm) Tap 14 (.50mm) Standard Extender 88.182 Tap 8 (1.1mm) Male Threaded Post O/A length 6.8mm
88.595 Tap 5 (1.40mm) Tap 5 (1.40mm) Standard Extender 88.182.1 Tap 8 (1.1mm) Male Threaded Post O/A length 12.3mm
88.596 Tap 6 (1.30mm) Tap 6 (1.30mm) Standard Extender 88.183 Tap 6 (1.2mm) Male Threaded Post O/A length 6.8mm
        88.183.1 Tap 6 (1.2mm) Male Threaded Post O/A length 12.5mm
88.600 Tap 11 (.80mm) Tap 10 (.90mm) Extender to Change Tap Size        
88.601 Tap 10 (.90mm) Tap 11 (.80mm) Extender to Change Tap Size 88.623 Tap 10 (.90mm) Male Adaptor O/A Length 3.75mm
88.602 Tap 10 (.90mm) Tap 12 (.70mm) Extender to Change Tap Size 88.623.1 Tap 10 (.90mm) Male Adaptor O/A Length 2.8mm
88.603 Tap 10 (.90mm) Tap 13 (.60mm) Extender to Change Tap Size 88.623.2 Tap 10 (.90mm) Male Adaptor O/A Length 3.1mm
88.607 Tap 10 (.90mm) Tap 7 (1.20mm) Extender to Change Tap Size 88.623.3 Tap 10 (.90mm) Male Adaptor O/A Length 4.0mm
88.608 Tap 10 (.90mm) Tap 8 (1.10mm) Extender to Change Tap Size        
88.609 Tap 10 (.90mm) Tap 9 (1.00mm) Extender to Change Tap Size        
88.612 Tap 12 (.70mm) Tap 10 (.90mm) Extender to Change Tap Size        
88.613 Tap 13 (.60mm) Tap 10 (.90mm) Extender to Change Tap Size        
88.614 Tap 14 (.50mm) Tap 12 (.70mm) Extender to Change Tap Size        
88.615 Tap 5 (1.40mm) Tap 10 (.90mm) Extender to Change Tap Size        
88.616 Tap 6 (1.30mm) Tap 10 (.90mm) Extender to Change Tap Size        
88.617 Tap 7 (1.20mm) Tap 10 (.90mm) Extender to Change Tap Size        
88.618 Tap 8 (1.10mm) Tap 10 (.90mm) Extender to Change Tap Size        
88.619 Tap 9 (1.0mm) Tap 10 (.90mm) Extender to Change Tap Size