Hulsman Easy Perpetual – The Timepiece

This watch reflects years of dedication, perseverance, and passion.

It carries Machiel Hulsman's signature case shape with open lugs.
It has an in-house movement made from traditional materials.
The perpetual calendar is Machiel Hulsman's proudest achievement.

After months of design and calculation, Machiel Hulsman is ready to build it with you.

• The date hand jumps over the two prisms at 2 and 4 o’clock to keep them visible.

• On the back, you see the day and month display, plus the leap year indicator.

• No pushers or correctors are needed.

• This space is used for a world’s first — prisms that show the month and day of the week on the side of the case.

Dial Features

• Day-night indicator with aventurine skies to tell you if it’s day or night.

• Winding indicator on the left, reminding you when to wind.

• Over 90 hours of power reserve means you won’t wind it often.

• The minute hand reads the outer track.

• The open tip reads the inner minute tracks near the prisms.

Movement Details

• 21,600 bph free-sprung balance floating 0.15 mm under a sapphire balance bridge.

• The movement appears to hover in mid-air.

• Visible gears with fine anglage and circular graining.

• Mirror-polished pinions with long shafts.

• Triangular pallet fork in blued steel for better performance.

Crown and Winding

• Reversed stem system for stronger and more versatile winding and setting.

• Built-in safety system to prevent accidental damage to the movement.

Finishing

• Work by Philippe Narbel and his team on components and finishing.

• High-end decoration with:

  • Côtes de Genève

  • Mirror-polished anglage

  • Black-polished screws

  • Black-polished bridge over the calendar discs

  • Gold chatons around rubies

  • Black-polished winding system parts

The Subscription

• Limited to 12 pieces.

• Watch number 0/12 will be auctioned for local charity.

• Support goes to the athletics club, sports groups, and nature preservation projects like De Veluwe and Van Meurs Park.

How to Join

• Project starts when 6 subscriptions are confirmed.

• Subscribers receive updates, photos, and videos during the build.

• Communication through WhatsApp and Signal.

• You can visit the atelier and help make a component for your watch.

• Choose your decoration, finishing, and design.

• Learn watchmaking techniques during the process.

Long-Term Care

• Comes with a detailed service manual.

• Any skilled watchmaker will be able to service it decades from now.