Dan's Watch Collection

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Orient Watch Movements


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Update July 30, 2016

This is the beginning of my Orient watch movement database.  I have the key to deciphering the markings on Orient watches, and I should now be able to identify the various calibers by their functions and layout.  I still need information from you to grow this database.  Please send me your Orient watch information.  I need the following for my project:  The markings on the case back, the functions of the watch and the dial layout, and the number marked on the rotor.  Thank you for your help! Click here to email your watch info to me.

I'd like to offer a very special thank you to Mr. Haruo Saito of the Orient Watch Co., who provided me with much of the information on this page.  He took a great deal of time and effort to help this watch collector.  Thank you so much!

If you see any errors in the database, or have additional information in Orient Watch movements, please email with corrections or information.

Calibers with a blue background are not verified.

Click on the linked caliber numbers for more information on that movement.

Many of the movements now have instructions from the Orient manual.  Click on the linked caliber numbers to check it out.

New! Some new calibers have been added, and I have received information that verifies that the calibers are referred to both by the 3-character number starting with 4, and by a 2-letter code.  I've added the 2-letter codes where applicable.


Caliber Rate Jewels Click Button Hacking? Hand Winding? Seconds Indicator Date Indicator Day Indicator Power Reserve World Time 24hr Hand AM/PM indicator Auto or Hand Wind
1743     21 no no no center seconds window no no no no no Auto
31942     21 yes - date no no center seconds window window no no no no Auto
429     27 yes - date no no center seconds window window no no no no Auto
4973     27 yes - ? no no center seconds window window no no no no Auto
468       no no no sub seconds @ 6:00 no no @ 12:00 no no no Auto
F69 AA 21,600 22 no yes yes center seconds @3:00 @3:00 no no no no Auto
F49 AB 21,600 21 no no no center seconds @3:00 @3:00 no no no no Auto
F67 AC 21,600 22 no yes yes center seconds @3:00 no no no no no Auto
F6N AF 21,600 22 no yes yes center seconds @3:00 no @12:00 no no no Auto
40R DA 21,600 22 no yes yes center seconds no no @12:00 no no no Auto
46A DB 21,600 21 no no no center seconds no no no no no no Auto
48C DD 21,600 21 no yes yes center seconds no no @12:00 no no no HW
40A DE 21,600 22 no yes yes center seconds Subdial @9:00 subdial at 6:00 @12:00 no no no Auto
405 DG 21,600 22 no yes yes center seconds no no no no no no Auto
48K DH 21,600 21 no yes yes center seconds subdial @ 6:00 no @12:00 yes no no Auto
40P DJ 21,600 22 no yes yes center seconds window @3:00 no @12:00 yes yes no Auto
40S DK 21,600 24 no yes yes Subdial @6:00 no no @12:00 no no no Auto
48Y or DM (469 variant) DM 21,600 21 yes - pictures no no center seconds windows @3:00 changeable picture instead of day no no no no Auto
407 DV 21,600 22 no yes yes center seconds window @ 3:00 no no no no no Auto
48D DW 21,600 21 no no no center seconds Window@ 3:00 no no no no no Auto
48E DX 21,600 23 no yes yes Sundial @6:00 no no @12:00 no no no HW
481 EH 21,600 20 no yes yes center seconds no no no no no no HW
40G EJ 21,600 22 yes - date yes yes center seconds window @3:00 no @12:00 no no no Auto
40N EL 21,600 22 no yes yes center seconds window @3:00 no @12:00 no no no Auto
469 EM 21,600 17 or 21 yes - day no no center seconds window window no no no no Auto
487 ER 21,600 21 no no no center seconds window no no no no no Auto
46C ES 21,600 21 no no no center seconds window Pointer @ 3:00 no no subdial @ 10 no Auto
46B ET 21,600 21 no no no center seconds window pointer @ 3:00 no no subdial @ 10 no Auto
46D EU 21,600 21 no no no center seconds window no no no no no Auto
46E EV 21,600 21 no no no center seconds window full day window no no no no Auto
46F EW 21,600 21 no no no center seconds no no no no no no Auto
46G EX 21,600 21 yes - date no no center seconds window no @ 12:00 no no no Auto
46H EY 21,600 23 no no no sub seconds @ 6:00 pointer @ 9:00 no @ 12:00 yes no no Auto
46J EZ 21,600 23 no no no sub seconds @ 6:00 pointer @ 9:00 no @ 12:00 no no no Auto
46K FA 21,600 21 no no no center seconds pointer @ 6:00 no @ 12:00 yes no no Auto
46L FB 21,600  21  no yes yes center seconds, hacking pointer @ 9:00 no @ 12:00 yes no no Auto
46M FC 21,600 21 no yes yes center seconds - hacking window no @ 12:00 no no no Auto
46N FD 21,600 21 no no no center seconds window no @ 12:00 no no no Auto
46P FE 21,600 21 no no no center seconds window no no no yes no Auto
46S FH 21,600 23 no no no sub seconds @ 6:00 no no @ 12:00 no no no Auto
46U FM 21,600 21 no no no center seconds pointer @ 6:00 no @ 12:00 no no no Auto
46V (469 variant) FN 21,600 21 day/am/pm no no center seconds window window no no no window Auto
46W (469 variant) FP 21,600 21 yes - day no no center seconds window dots or arrows no no no no Auto
46X FR 21,600 23 no no no sub seconds @ 6:00 no no @ 12:00 no no no Auto
46R FT 21,600 21 no no no center seconds no no @ 12:00 no no no Auto
46Y FX 21,600 21 yes no no center seconds window calendar no no no no Auto
40H JC 21,600 24 no yes yes subdial @6:00 subdial @9:00 no @12:00 yes no no Auto
555 NB 21,600 21 no no no center seconds no no no no no no Auto
558 NP 21,600 21 yes - day no yes center seconds window window no no no no HW
559 NQ 21,600 21 yes - day no yes center seconds window window no no no no HW
557 NR 21,600 21 no no yes center seconds window no no no no no HW
597 PF 21,600 21 no no yes center seconds window no no no no no HW
599 PM 21,600 21 yes - day no yes center seconds window window no no no no HW


Orient Watch Grades

The two letters found on the case and dial of each Orient watch designate the movement, which is graded for accuracy.   There seem to be only three major grades.  This info is from a 2001 catalog.  Thanks to  Adriano from SCWF, who posted this info.

FC, EG : +10~-5 sec / day

FA, EX, FE, ER, EM : +25~-15 sec / day

PF, NR : +40~-30 sec / day