GMT Hands: The Fourth-Hand Pressing Guide

The Fourth Hand Challenge

Pressing the GMT hand is the trickiest step in four-hand builds — it sits lowest in the stack but requires the most precision. Here is the specific technique.

Why GMT Hands Are Different

• Largest center hole: fits over the entire hand stack — alignment errors are less forgiving
• Pressed first: every subsequent hand sits above it; mistakes compound upward
• 24-hour scale reference: misalignment shows against the dial's ring immediately

The Pressing Sequence

1. Set movement to exactly 12:00 local time
2. Set the GMT hand to 12 on the 24-hour scale (or your preferred reference)
3. Select the correct die — largest opening that contacts only the GMT hand's base
4. Press with minimal pressure — the GMT hand seats on a friction post, not deep channels
5. Verify: rotate crown through positions; GMT should move independently at position 1

Common GMT Hand Issues

Dial requirements for the GMT hole in our pairing guide.

Frequently Asked Questions

Can I use regular tweezers to position before pressing?
Yes — brass tweezers won't scratch. Position precisely, then bring the press down straight.