Orient Caliber F4902
Orient Caliber F4902

Orient Caliber F4902

Manufacturer Orient
Caliber Number F4902
In-House?
Yes
Movement Type Automatic
Jewels 21
Vibrations Per Hour
21,600 bph
Anti-Shock System Seiko Diashock
Rotor Winding Direction
Bi-directional (Magic Lever)
Power Reserve
~40 hours
Hand Windable?
No
Hacking? No
Lift Angle (Add to comments below…)
Functions Central hours, central minutes, central sweeping seconds, day/date at 3:00
Country of Manufacture Japan
Known Models TriStar DENEB from the Tri-Star Collection (Please add your watch and more known models to the comments below…)

The Orient caliber F4902 is a self-winding automatic movement with 21 jewels. Orient makes their movements in-house in Japan. This is a non-hacking and non-handwinding movement. You may have seen other sites list this movement incorrectly as caliber F49-02 or F.4902, but Orient officially writes the caliber number as F4902.

F4902 VS 46943:

The Orient caliber F4902 is said to be an upgrade to the caliber 46943. The main difference is that the older 46943 has a pusher on the side (2:00) to change the calendar (day of the week), while the newer F4902 calendar can be corrected via the crown.

Power Reserve:

The Orient caliber F4902 has a power reserve of 40 or more hours.

Setting the date:

Avoid setting the date on your F4902 watch within the hours of 8:00pm to 4:00am.

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Rodrigo Barbosa
Rodrigo Barbosa
2 years ago

Caliber of my Orient Automatic Sport F49SS005 G2SX 

Breno Althoff
Breno Althoff
1 year ago

Caliber of my Orient F49RC003

Gilson Azevedo
Gilson Azevedo
1 year ago

This is caliber of my new watch Orient Automatic Tri Star F49SS013-D1SX (Blue),
the most beautiful watch of my collection, produced in the city of Manaus, Brazil.
Este é o calibre do meu novo relógio automático Orient Três Estrelas F49SS013-D1SX (Azul), o relógio mais bonito da minha coleção, produzido na cidade de Manaus, Brasil.

Florin C
Florin C
4 months ago
Reply to  Gilson Azevedo

Central and South America, but especially Brazil, seem to get some very special Orient models, some of which I would love to have the opportunity to buy, like all those colourful 3-stars: Blue-Ciel, Emerald-Green, Ruby-Red, all those degrade-dials!

Ramon Candido
Ramon Candido
1 year ago

The F4902 Caliber can be found in a large number of newer Orient models, from diver watches to other kinds, like casual-looking ones, fliegers and so on. The reference for those models always start with F49, followed by the material indicating code (SS for Stainless Steel, TT for Titanium, SC for steel case and leather strap) and a number. I own two watches powered by the F4902: The limited edition diver F49TT001 and the flieger-looking F49SC012, wich has an glass back, allowing you to see the movemente. Classy.

Eray
Eray
6 months ago

Hello,
Does the rotor of caliber F4902 have bi-directional winding?

Eray
Eray
6 months ago

Hello.

Does the white dial Orient FAB00009W9 watch use the F4902 movement?

Florin C
Florin C
4 months ago

I have the 46943 in my Orient 3-star that I bought in 2005 – it still runs great, accuracy within +10 seconds/day, usually less than that. Just took it into a watch shop 3-4 times since then for simple maintenance.
The F4902 I have in my newer 3-star (AB0D-C0-A C150245, tobacco dial, golden hands and indices) which I got as a present from my work mates when i quit my job 2 years ago and it is just as accurate and reliable.
These calibers are just as reliable and legendary as Seiko’s 7S26.

Frederic
Frederic
3 months ago

It’s the caliber of my Orient RA-AB0F07B19B (dark blue dial).

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