Endeavour

A name that gathers older watches

Moser grouped its established classic models under the Endeavour name at Baselworld in 2014. That means some Endeavour watches predate the name, and a dealer's listing may use an older label. Check the reference rather than the collection name when you're trying to work out what a watch is.

The line's design idea is restraint. The cases are round, the finishing mixes polished and brushed surfaces, and the dials keep the hands and indices clear. The perpetual calendars and tourbillons are more complicated, but the dials stay quiet, so the complexity lives inside the case rather than on the face.

For an owner, the useful split is simple. The Endeavour Centre Seconds Automatic runs the HMC 200, and the Endeavour Perpetual Calendar runs the hand-wound HMC 800. Other references use other movements, so confirm which caliber you have before you book a service.

The HMC 200 and HMC 800 and what each one does

The HMC 200 is an automatic movement with hours, minutes and center seconds. It arrived with the Endeavour Centre Seconds in 2017. Moser's user manual gives its power reserve as more than 72 hours on a full wind. Because it's the manufacture's own design, check parts availability with Moser before a watchmaker starts the work.

The HMC 800 is hand-wound and carries a perpetual calendar that is part of the movement rather than a separate module. The brand lists a minimum seven-day reserve, 18,000 vibrations per hour, two mainspring barrels and an interchangeable escapement module. The date and month can be set forward or backward at any time, and the leap-year cycle is corrected with a separate recessed button rather than through the crown.

Moser's operating instructions suggest winding the HMC 800 at the seven-day mark, even though the watch can keep running past that. Accuracy may begin to fall as the energy drops. Treat the reserve indicator as a reminder to wind on a schedule, and when you test a pre-owned example, check the timing at full wind and again later in the reserve.

Servicing an Endeavour with a perpetual calendar

Moser asks owners to get in touch before shipping, and its general procedure starts with an arrival inspection and a quote. Work begins only after you approve the estimate. For an Endeavour with the HMC 800, the manufacture is the first call, because the calendar is part of the movement and a careless job shows up later as a calendar that drifts or sticks.

Ask the watchmaker to check the calendar on the bench before the watch comes back. Test the date and month changes forward and backward, the leap-year display and the change at midnight. Ask for the reserve test and the timing in several positions as well, and ask for the results in writing.

An independent can service a simple time-only or center seconds Endeavour once it's out of guarantee, if they know Swiss movements and can say which parts they can source. A perpetual calendar is a different job. Leave it with the manufacture unless the work is a basic clean and check agreed in writing.

Buying a pre-owned Endeavour

Check the guarantee card, the box and the serial number, and confirm the reference matches the dial and movement. A perpetual calendar needs a closer look. Test the month hand, the leap-year indicator and the date change, and watch the calendar move cleanly through midnight.

Minimalist dials show hairlines and case scuffs quickly. Inspect the watch under good daylight rather than in photographs, and look at the sapphire caseback for scratches, since that's where the movement is visible. A caseback with clouded or scratched crystal tells you something about how the watch has been stored.

Ask how the watch was last serviced and where. A recent overhaul at the manufacture is the best evidence you can get, and a documented history makes resale easier. Auction and dealer sales need the same paperwork, plus a reserve and timing check at full wind.

Caring for a minimalist dial and case

A clean, quiet dial shows everything, so keep it that way. Clean the crystal and caseback with a soft cloth, and avoid household cleaners, which can damage gaskets and coatings. Store the watch in a soft pouch rather than loose in a drawer, because a bare case or a sharp buckle will leave marks on the finish over time.

Moser's dials are restrained enough that a small change stands out. A replaced hand, a re-lumed index or a dial that has been polished changes the look of the watch and the record of its originality. If a repair involves any of those, ask for the removed parts to be kept or returned, and make sure the work order names each one.

Think about the calendar as a habit as well as a mechanism. On a perpetual calendar, set the date and month away from the midnight change, and avoid running the calendar through its changes with a hand near the crown. A few seconds of care each time protects the calendar, which is the part of the watch most likely to need specialist attention later.

What to check on a Endeavour

• Knowledge of the HMC 200 and HMC 800, and of which one is in your watch
• A calendar check on the bench before any perpetual calendar goes back
• Honest answers on the reserve and when the watch should be wound
• A check of the reference against the guarantee card and serial

Common questions