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Back case Opener Knife Opening Tool Watchmaker Swiss
4932

Back case Opener Knife Opening Tool Watchmaker Swiss

4.7 from 184 notes

A hand case knife with a rigid ground blade shaped to address snap backs and stubborn bezels at the bench.

$50.99

Prices are as our retail partner last showed them.

Reference4932
DrawerCase Opening & Crystals
What it isA tool in its own right
Bench jobOpening and closing a case

Snap-on casebacks require direct purchase right at the seam. We grind the blade on 4932 short and stiff so the edge seats into the case notch without twisting under your thumb. The shaped handle fills the palm while your fingers guide the bevel into place.

Fixed ground blade

The blade is set permanently into the handle without hinge play or flex. Its bevel narrows to a wedge profile that meets the rim of a pressed caseback.

Shaped handle body

The broad handle gives the palm something solid to bear against during a lift. It stays firm under hand pressure when finding purchase in a tight case lip.

Thumb rest placement

Your thumb sits flat along the upper flat of the stock behind the blade. This keeps the vector of force in line with the case notch rather than skewed.

Edge dressing

Keep the working edge dressed on a fine bench stone if the face burrs. A clean, straight bevel finds the seam faster than a rounded lip.

The rest of the 4932 line

A note that touches this tool

Opening a stubborn case back

Snap backs against screw backs against monobloc cases, how a case key and its dies engage a fluted rim, why the case is held in a holder rather than in the hand, and what to do when the back has been opened badly before.

Read the note

4932

$50.99