Moser & Cie. presents two very different ideas at Watches & Wonders 2026. The Streamliner “Pump” turns winding into a physical gesture inspired by the Reebok Pump shoes, replacing the crown with a push mechanism. At the same time, the brand applies its Concept approach to the perpetual calendar in tantalum, stripping the display down to its essentials and letting the material define the watch.

The Streamliner “Pump” in black and white, highlighting the contrast in materials and the distinctive pusher-based winding system

Streamliner “Pump”

In 1989, Reebok introduced the Pump, a sneaker with an internal inflation system that tightened the fit around the foot at the press of a button. It quickly became a cult icon, defined as much by this simple gesture as by its performance.

Moser & Cie. takes that idea into watchmaking with the Streamliner Pump. The traditional crown is replaced by an anodised aluminium pusher, with each press winding the movement and adding roughly one hour of power reserve, indicated directly on the dial.

To make this possible, the HMC 500 has been reworked from an automatic micro-rotor into a manual-winding movement. The micro-rotor is removed to make space for a new gear train linking the pusher to the barrel, visible beneath skeletonised bridges.

The HMC 500 calibre, reworked for the Streamliner “Pump,” reveals a new gear train linking the pusher-based winding system to the barrel beneath skeletonised bridges

The watch is cased in forged quartz fibre, a rare composite in watchmaking. Formed under compression and combined with injected resin, it produces a light, matte surface with a natural moiré pattern. An inner titanium structure provides rigidity and water resistance, while the 40 mm case remains light on the wrist.

Tech Specs: Streamliner “Pump”

Movement: HMC 500 architecture, manual winding, 74-hour power reserve, 21,600 vph
Functions: Hours, minutes, power reserve indicator, pusher-based winding system
Case: 40mm x 11.4mm, forged quartz fibre with titanium internal structure
Strap: Integrated rubber strap
Availability: Limited to 250 pieces per variant

The Endeavour Perpetual Calendar Concept Tantalum strips the display back, letting the raw metal dial and minimal indications define the watch

Endeavour Perpetual Calendar Concept Tantalum

The Endeavour Perpetual Calendar Concept Tantalum continues the brand’s Concept philosophy by removing almost all visual elements from the dial. There is no logo, no markings, nothing unnecessary. But the idea itself is not new. What stands out this year is the material. Both the case and dial are machined from solid tantalum, left untreated and finished with a brushed sunburst texture that reveals the raw character of the metal.

Despite the minimalism, it remains highly functional. The watch is still a full perpetual calendar. The date is displayed via a large, highly legible window, while the month is indicated by a small central hand. A power reserve indicator sits at 9 o’clock, with small seconds at 6.

The HMC 800 calibre powers the Endeavour Perpetual Calendar Concept Tantalum, with its seven-day reserve and leap year indication visible on the caseback

Inside is the hand-wound HMC 800 calibre, offering a 7-day power reserve and complete perpetual calendar functionality, including the leap year cycle displayed on the caseback, with all adjustments made through the crown.

Tech Spec: Endeavour Perpetual Calendar Concept Tantalum

Movement: HMC 800, manual winding, 7-day power reserve, 18,000 vph
Functions: Hours, minutes, perpetual calendar, power reserve indicator
Case: 42mm x 13.1mm, tantalum
Dial: Tantalum with brushed sunburst finish
Strap: Leather strap
Availability: Limited to 50 pieces