In Depth · H. Moser & Cie.

H. Moser centres a flyback chronograph and dual time

The 42mm Endeavour uses central hands for elapsed seconds, elapsed minutes and a second time zone, keeping subdials off the fumé dial.

Hen & Mills Editorial · 4 min read · 11 September 2026

• Central elapsed-seconds and elapsed-minutes hands avoid conventional chronograph subdials.
• A white arrow supplies the second time zone, while the HMC 730 adds flyback timing, date and 72 hours of reserve.
• Reference 1730-1200 is listed at CHF 59,000 excluding VAT on Moser's official site.

H. Moser & Cie.'s current Endeavour catalogue includes one watch that combines a flyback chronograph, second time zone and date without adding a conventional subdial. Reference 1730-1200 places the chronograph hands and second-zone indication at the centre of a 42mm steel case, with the date at six o'clock. The manually wound HMC 730 drives the display, and the official product page lists CHF 59,000 excluding VAT.

Can three complications share one dial?

The central stack is the key to the design. Conventional chronographs normally dedicate one or more subdials to elapsed minutes, running seconds or both. Moser instead gives the chronograph seconds hand and elapsed-minutes hand full access to the main dial. A white arrow set into the central fumé disc indicates the second time zone, while the date appears through a small aperture at six o'clock.

Each display is visually subordinate until it is needed. Elapsed seconds and minutes share one white track on the turquoise fumé outer dial, with a black tachymeter flange at the perimeter. Local hours and minutes use broad leaf-shaped hands over the darker centre. The red central chronograph hand is immediately identifiable, while the second time zone uses a white arrow in the central disc.

That hierarchy is the practical achievement. A central chronograph gives the elapsed hands the longest possible scales, while the small dual-time arrow limits permanent clutter. The date is the only complication that requires a hole in the dial. Moser still has to fit several hands on one pinion, but the information is distributed radially rather than chopped into separate registers.

HMC 730 removes the rotor

The HMC 730 is a manually wound calibre with a 72-hour power reserve. Moser says it reinterprets the architecture of the automatic HMC 902 after removing the winding system and oscillating weight. That change leaves the movement visible through the caseback window and allows its chronograph mechanism to become part of the watch's visual appeal.

The flyback function lets the wearer stop, reset and restart timing with one press rather than completing those actions separately. Both elapsed seconds and minutes are read from the centre. This suits tasks where consecutive intervals matter, but it also avoids the tiny 30-minute register that can make some traditional chronographs difficult to read.

Manual winding is a defensible choice in this context. The 72-hour reserve provides roughly three days between full winds, and removing the rotor makes the complete chronograph architecture easier to inspect. The trade-off is obvious: this is not a watch that can be left on a desk for a working week and expected to keep running.

The case stays conventionally Endeavour

The polished steel case is 42mm in diameter and rated to 3 ATM. Its narrow bezel and curved lugs leave a large opening for the dial, which helps the two chronograph scales remain legible. The dimensions are not discreet, but the traditional round profile is far calmer than the density of the movement suggests.

A grey alligator nubuck strap keeps the palette muted from the front. Its turquoise underside picks up the dial colour without putting another bright surface beside it. The crown sits on the right, while the two chronograph pushers are integrated into the upper case shoulders around ten and two o'clock.

Water resistance is 3 ATM, the lowest practical specification on the sheet. Together with the grey alligator nubuck strap, it positions the watch as a complicated dress and travel piece rather than an all-purpose sports watch.

Centralisation has a mechanical cost

Moving the chronograph minutes to the centre improves the scale, but it adds another hand to an already crowded axis. The calibre must also coordinate a flyback reset, a second time zone and a date mechanism while preserving the 72-hour reserve. Moser's answer is not to disguise that density. The caseback reveals levers, bridges, wheels and the open architecture made possible by manual winding.

The dial takes the opposite approach. There is no logo, no hour numeral and no conventional running-seconds display fighting for attention. This is typical Moser restraint applied to a watch whose specification is unusually busy. Whether it succeeds depends on how quickly the wearer can distinguish the elapsed-minutes indication from local minutes, but the use of colour and scale position gives each one a separate path.

The second-time-zone arrow is the quietest part of the design and probably the most useful in daily wear. It can be read at a glance when travelling without requiring a separate subdial. The flyback chronograph remains available without turning the dial into a permanent instrument panel.

H. Moser Endeavour Flyback Chronograph price and availability

H. Moser lists the Endeavour Flyback Chronograph Dual Time Date reference 1730-1200 at CHF 59,000 excluding VAT. The official page provides Reserve and enquiry controls but does not state broader retail allocation. The watch has a 42mm steel case, grey alligator nubuck strap and hand-wound HMC 730 with 72 hours of power reserve. Australian pricing is not published, so the final landed figure will depend on tax and distribution.