Swiss Kubik Masterbox Black Leather white stitching watch winder

Where Swiss watchmaking meets leathercraft

The Masterbox black leather with white stitching is not trying to compete with the Masterbox aluminium black — it offers another way into it. Same Swiss Made Swiss Kubik motor approved by Rolex, same Bluetooth and USB-C programming, same certified magnetic neutrality. But under genuine leather applied to every face, which completely changes the object sitting on your bedside table or in your dressing room. The white stitching underlines every edge — that detail is what makes the piece.

The automatic watch winder approved by the Rolex manufacture

Swiss Kubik is one of the few manufactures officially approved by Rolex — and one that has built bespoke winders for certain models in the range. The Masterbox leather is hand-made at the Givisiez manufacture in Switzerland, to Swiss Made standards.

Bluetooth, USB-C — every watch to its own requirements

In standard settings the Masterbox runs 1,600 rotations per day — 800 in each direction — covering 90% of the automatic calibres on the market. The smartphone app lets you enter the brand and reference of your watch: the app then adapts the programme with the ideal number of turns. Rotation direction and turns per day can also be set manually, over Bluetooth (iOS/Android) or from a computer via USB-C.

3 years of battery autonomy — ideal for a safe

The Masterbox runs on batteries, with no cable: two Duracell LR14 batteries are supplied and give up to 3 years of autonomy. Put it wherever you like — on a cabinet, in a dressing room or inside a safe. USB-C mains power remains available if you prefer.

Silent, antimagnetic motor — pause phases and vertical stop

The Swiss Kubik motor is silent. Measured magnetic neutrality: 0.07 mT — 85 times below the ISO 764 standard — a technical argument almost no competitor puts forward. Between each cycle, a pause phase and an automatic vertical stop at 12 o'clock: the mainspring relaxes properly.

• Motor: Swiss Kubik Swiss Made — approved and used by the leading watch houses including Rolex
• Rotation: 1,600 TPD by default (800 clockwise + 800 counter-clockwise) — reconfigurable over Bluetooth and USB-C
• Material: aluminium clad in genuine black leather on every face, white stitching — Swiss Made
• Dimensions: 10 × 10 × 10 cm
• Power: 2 Duracell LR14 batteries supplied — up to 3 years of autonomy, cordless, safe-friendly. USB-C mains power available as an alternative
• Pause phases: yes — vertical stop at 12 o'clock between each cycle
• Motor noise: silent
• Antimagnetic: 0.07 mT — 85 times below the ISO 764 standard
• Programming: Bluetooth (iOS/Android) + USB-C
• Options: acrylic protective window or small-wrist holder
• Warranty: 3 years

Black leather, the universal match

Black leather with white stitching goes with everything — a Rolex Submariner, an Omega Seamaster, a Jaeger-LeCoultre Reverso. It is often the first leather Masterbox people choose, rarely the only one. For a warmer tone, the Masterbox light brown leather. For the collectors' signature shade with a glazed front, the Masterbox Rolex green leather.

Building your Masterbox collection

The Masterbox is a self-contained individual cube running on batteries. You can have as many as you have watches to maintain: side by side or stacked, matching colours. In eloxed aluminium, the Masterbox black, the Masterbox Rolex green or the Masterbox navy blue.

Swiss Kubik leather or Italian leather?

Same Swiss Kubik motor, but leather hand-applied at the Italian Scatola del Tempo manufacture: the Rotor One black leather is a design object shaped like a porthole, with a graduated bezel inspired by the Rolex GMT and Submariner. For an entry-level winder with no settings, the Startbox black.

Not sure which programme suits your watch? Read our complete guide to automatic watch winders or our why use a watch winder page. Browse our full range of watch winders for automatic watches.