MacG Lab

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MacG Lab Providing Repair Solution for every wristwatch owner

22/10/2026

A vintage Tudor with a stopped movement and a bent hand. A complete overhaul to restore its mechanical performance while preserving its vintage character.

Have you ever wondered how the movement of your wrist powers an automatic watch?As your wrist moves, the rotor spins. Th...
27/09/2026

Have you ever wondered how the movement of your wrist powers an automatic watch?

As your wrist moves, the rotor spins. This rotation is transferred through the automatic winding mechanism to the barrel, causing the mainspring to wind and store energy.

The stored energy is then released gradually to power the movement.

23/09/2026

A closer look at today’s case repair.

The dented area was carefully rebuilt with laser welding, then refined to bring the surface and case profile back into shape.

Before → Repair → After.

22/09/2026

Issue : Manual winding, but no power transmission.

Finding : Broken mainspring coil

Closer look

After replacement : Power transmission restored

A closer look at dent repair using laser welding.The damaged area is carefully rebuilt with added material, restoring th...
10/09/2026

A closer look at dent repair using laser welding.

The damaged area is carefully rebuilt with added material, restoring the surface without unnecessary material removal.

01/09/2026

Some watches carry more than just value — they carry memories.

There’s something special about bringing an inherited timepiece back to life and seeing it tick again.

Disclaimer: Procedures shown are for educational reference only and may vary depending on the movement and its condition. Proper watch servicing requires technical knowledge, experience, appropriate tools, and professional judgment. This content is not intended as a service guide or instruction to replicate the procedures shown.

Before vs After PolishCorum Admiral 42 mm
20/08/2026

Before vs After Polish

Corum Admiral 42 mm

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Jalan Palapa Raya No 9A RT 7 RW 7, Duri Kepa
Kramat Jati
11510

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Monday 08:00 - 18:00
Tuesday 08:00 - 18:00
Wednesday 08:00 - 18:00
Thursday 08:00 - 18:00
Friday 08:00 - 18:00
Saturday 08:00 - 18:00

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