To obtain watch parts correctly, it is important that Case numbers be used when ordering these parts. Different watch manufacturers place these numbers at different points on the case. This listing is a guide in obtaining the correct number.
ACCUTRON
BULOVA
CARAVELLE
WITTNAUER
Number inside of case back, embossed or stamped in black ink. Example N510 or 3170 or C852062 And dial# on dial at 6:00.
CITIZEN
Number on outside of case back; Older models usually begin with “4”. Example 4-063546 or 2030-915660.
Also Model is shown on older models Example No. BW-7244 or 71-2330
OMEGA
Number inside case back. Example: 145.012
LONGINES
Example:
Old watches (CMT2512-MO520)
New watches(L2.654.5)
PULSAR/LORUS
Number on outside of case back. Example Y432-5901
RADO
Number is on outside of case back And Dial # at 6:00
ROLEX
Number inside case back or between Case lugs at “12” position. Example 6334
SEIKO
Number on outside of case back. Usually 8 digits Example 6139-6005
TISSOT
Number inside of case back. Example 17422 or T281/381
WYLER
Number on outside of case back. Example 722-946B
ZODIAC
Number on inside of case back. Example 722-946B
ZENITH
MOVADO
Number on outside of case back.

ESQUIRE
I’m not a collector so this is likely going to sound really dumb but… what is a case number? Why does it matter? I have a TCM Orienteering PVD watch and the number on the back is 07-0116. I understand the 07 stands for the model, but what does the case number indicate? Is it unique to my particular watch like a serial number would be? Does it matter? Just curious. Thanks
Looking for a crown and stem for a Versace Men’s 29G60D009 S060 V-Race Black Dial Black IP Stainless Steel Watch. Dont know how it went missing
Please use our watch parts inquiry form found here: https://www.esslinger.com/watch-parts-inquiry/
Someone in the parts department will research your watch with the given information and get back to you as soon as they can with a price and availability of the parts you are looking for and answer any questions you may have.
I need a crown for my Curtis & Co Big Time World three time Zone 50 mm limited edition watch. Can you help me with which part I should order?
Please use our watch parts inquiry form found here: https://www.esslinger.com/watch-parts-inquiry/
Someone in the parts department will research your watch with the given information and get back to you as soon as they can with a price and availability of the parts you are looking for and answer any questions you may have.
Selling a spare part of all watch