If you have been hunting for a Speedmaster-style chronograph that feels right on the wrist without the collector price tag, this replica Omega Caliber 1861 build is the one most buyers ask for first. It captures the classic hand-wound moonwatch layout, two registers, a tachymeter bezel, and that unmistakable domed-crystal warmth, in a piece you can actually wear every day. Every unit is assembled and timed on the bench before it ships, so it arrives ready to wear rather than needing a trip to a watchmaker.
Key Features
- Hand-wound chronograph movement built to mirror the Caliber 1861 layout
- Two-register dial with running seconds at 9 and a 30-minute counter at 3
- Stepped black dial with applied indices and lume-filled baton hands
- Tachymeter-scaled bezel insert for classic moonwatch proportions
- 42 mm stainless steel case with a slim, flat-sided profile
- Domed crystal that reproduces the original's light-bending distortion
- Steel bracelet or leather strap available at checkout
- Screw-down caseback with a gasket seal for daily wear
Materials and Specifications
The case is machined from 316L stainless steel and finished with a mix of brushed flanks and polished lugs, which keeps the light moving across it the way the original does. Inside, the hand-wound chronograph runs at 21,600 vibrations per hour with 18 jewels and roughly a 48-hour power reserve, and it uses a cam-and-shuttle chronograph mechanism rather than a column wheel. The dial sits under a domed crystal, the indices and hands carry lume, and the bezel insert is printed with a full tachymeter scale. Pusher feel is crisp with a short, positive travel on start, stop and reset.
Shipping and Returns
Orders are packed in a protective travel case and dispatched within one business day, with tracking sent to your email as soon as the parcel moves. Domestic delivery typically lands in two to five business days, and international orders are quoted at checkout. If the watch is not right for you, return it unworn and in its original packaging within 30 days for a refund or an exchange, and our team is happy to help with sizing or strap swaps before you send anything back.
Is the Caliber 1861 the same as the Lemania 1873?
Essentially yes. The Omega Caliber 1861 is a refined version of the Lemania 1873 base, the same architecture that powered the Speedmaster Professional for decades. That shared lineage is why the pusher layout and beat rate feel so familiar.
Do I have to wind this watch every day?
Yes. It is a hand-wound movement with no rotor, so a full wind each morning gives you about 48 hours of running time. Winding it at the same time daily keeps the rate consistent and avoids running it down to a stop.
How do I operate the chronograph pushers?
Use the upper pusher to start and stop the chronograph, then the lower pusher to reset it to zero. Always stop the chronograph before resetting, since resetting while it is running puts unnecessary strain on the mechanism.