Konstantin Chaykin Unveils Master of Days Mechanical Calendar Cufflinks

Image source: konstantinchaykin.com

How Konstantin Chaykin's Master of Days Cufflinks Work

The defining feature of Master of Days is its mechanically operated weekly calendar. Each time the wearer fastens a cufflink, the movement advances the indicator by one position, corresponding to the next day of the week. The mechanism therefore completes a seven-step cycle through repeated operation rather than continuously measuring the passage of time.

Beneath the sapphire crystal, a seven-pointed star wheel advances the blue day-of-the-week indicator with each fastening action. This distinctive component forms part of the mechanism responsible for changing the calendar display, while the blue indicator provides a visual contrast against the surrounding metal components. The arrangement allows the wearer to observe the mechanical construction rather than concealing it behind a conventional dial.

Because the mechanism responds to the fastening action, the display advances when the cufflink is operated, not automatically at midnight. The indication consequently depends on how the accessory is used, making Master of Days an interactive mechanical calendar rather than an independently running timekeeping device. This distinction is central to its design and separates it from traditional wristwatch calendar complications.

Titanium Construction and Calibre A.01-1

Each Master of Days cufflink is made from titanium and protected by a sapphire crystal with an anti-reflective coating. Despite its compact dimensions, the accessory contains a dedicated mechanical movement developed to operate the weekly display. Its construction brings together miniature components and decorative finishing techniques normally associated with mechanical watches.

The principal technical specifications are:

• Case material: Titanium.

• Dimensions: 18mm diameter and 5.7mm thickness per cufflink.

• Movement: Calibre A.01-1 with two jewels.

• Movement dimensions: 13.9mm diameter and 2.1mm thickness.

• Calendar function: Seven-position day-of-the-week indication.

• Components: 40 parts per cufflink, including 13 case components and 27 movement components.

• Crystal: Sapphire with anti-reflective coating.

• Price: CHF 4,500 per pair, or RUB 450,000 including VAT in Russia.

Calibre A.01-1 is a miniature mechanical assembly designed specifically for the cufflink's calendar function. The calibre incorporates two jewels and brings together the day indicator and its advancing mechanism within an exceptionally compact construction. Its 27 movement components demonstrate how even a relatively simple display requires precise mechanical coordination at this scale.

The finishing also reflects traditional watchmaking methods. The movement plate receives a sandblasted finish, while selected components feature satin brushing and polishing. Hand-finished bevelled edges, produced using the technique known as anglage, add a decorative element to the exposed mechanism.

A Mechanical Accessory Beyond Traditional Watchmaking

Master of Days represents a different application of Konstantin Chaykin's approach to mechanical design. Rather than adding another complication to a wristwatch, the independent watchmaker has created a standalone accessory that performs a single calendar function. Its operation is deliberately connected to the wearer, making the act of fastening the cufflinks part of the mechanical experience.

The titanium construction keeps the design compact, while the visible star-shaped mechanism gives each cufflink a recognisable technical identity. The combination of a seven-day display, miniature calibre and hand-finished components positions the accessory closer to a specialised horological creation than conventional jewellery.

With a price of CHF 4,500 per pair, Master of Days is aimed at collectors and enthusiasts interested in unusual mechanical objects. It does not replace a traditional calendar watch, but demonstrates how familiar horological principles can be adapted to accessories that operate without a conventional power reserve.