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H. Moser & Cie

H. Moser & Cie Streamliner Perpetual Calendar

SKU: 6812-1200 

H. Moser & Cie
  • $54,900.00

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A fusion of two indie icons

The philosophy of the Streamliner Perpetual Calendar is 'complexity made simple,' where this new reference is without question, the most ingenious, yet most practical and capable perpetual calendar on the market.

In 2005, H. Moser & Cie. marked its return to watchmaking by revolutionizing the perpetual calendar with the Perpetual 1. Distinctly minimalist and understated, to the untrained eye, this movement simply looked like a simple three-handed calibre with a date. This minimalist, ingenious presentation of a true haute horlogerie complication has become a signature of the Schaffhausen-based independent. Flash-forward to 2021, where H. Moser & Cie. has updated this famous movement with a running seconds hand and an instantaneous date change function and introduced it to the Streamliner collection, yielding the new Streamliner Perpetual Calendar — a fusion of two young icons in the making. 

A masterpiece of simplicity and ingenuity, the HMC 812 uses the indices to indicate the months via a small red and white central hand. It has a guaranteed power reserve of 168 hours, displayed at 10 o'clock on the dial via an indicator. At 4 o'clock, a window indicates the date, in large format, thanks to two superimposed discs which operate one after the other, from 1 to 15 then from 16 to 31. Aligned on the crown, the date window is positioned at an unusual angle which required the numerals to be tilted to 26°. The date changes in a flash at midnight thanks to the "Flash Calendar" instantaneous date- change mechanism, and it can be adjusted forwards or backwards at any time of day. In constant pursuit of minimalism, the leap year indicator is located on the movement side. 

The Streamliner Perpetual Calendar has perfectly rounded curves, evoking the very first high-speed trains from the Twenties and Thirties whose name it adopts. This shaped watch is equipped with a steel cushion case measuring 42.3 mm in diameter and is water-resistant to 12 ATM. Its off-centre crown, adorned with an "M", is positioned at 4 o'clock. Designed as a truly sculptural piece, this case boasts harmonious proportions and beautiful aerodynamics. It is topped by a subtly domed Glassbox type sapphire crystal, echoed by the see- through case-back. These curves extend to the integrated steel bracelet, which is elegantly arced to follow the line of the wrist; the unique design of the links ensures that it sits perfectly on even the most slender of wrists. Highly complex in construction, this bracelet has extremely fluid lines, based on organic forms. All the links are articulated and feature a gentle wave combining a vertical brushed finish with polished surfaces. The bezel has a sunray brushed finish; the case has alternating brushed and polished surfaces, with hollowed and satin-finished forms on the sides, in a nod to the traditional unusual shapes typical of Moser cases.

Around the edge of the brand's signature fumé dial, the red and white outer minute track measures the movement of the central seconds hand. The seconds hand, the power reserve hand and the months hand are reminiscent of those on the dials of car dashboards or measuring instruments. The manufacture has chosen three-dimensional curved hands to indicate the hours and minutes, formed of two sections and featuring inserts made from Globolight®, an innovative ceramic-based material which contains Super-LumiNova®.


  • Case: 42.3mm Stainless steel
  • Caliber: HMC 812 Manufacture calibre (Handwound)
  • Movement: Perpetual calendar with date and month (month indicator via red central hand), big date at 4:00, power reserve indicator at 11:00
  • Power reserve: approx. 168 hrs (18,000 Vib/h)
  • Dial: Blackor fumé with sunburst pattern, H. Moser & Cie. logo in transparent lacquer, hour and minute hands with Globolight® inserts
  • Caseback: Exhibition
  • Water resistance: 120 meters (12 bar)
  • Crown: Screwdown
  • Crystal: Domed & cambered sapphire crystal
  • Strap: Integrated steel bracelet, folding clasp with three steel blades, engraved with the Moser logo (half-links available)