Gasket Sizing Database

Resources:

Gasket Part Number Decoder:

https://seikoworldtime.com/articles/seiko_codes_and_part_numbers?gasket=

 

Crystal Gasket

Model Number	Gasket Type	Inner Diameter (mm)	Height (mm)	Thickness (mm)	Reference Number
Seiko SKX007 / SKX009 / SKX011	Crystal Gasket	31.5	1.5	0.38	8660-0630
Seiko SKX013 / SKX015 / SKX017	Crystal Gasket	28.0			8659-8035
Seiko 5KX/SRPD	Crystal Gasket	31.5	1.3	0.45	8662-0575
Seiko SBDC001 / SBDC003 / SDBC031 / SBDC033	Crystal Gasket				8659-2930

 

Bezel Gasket (O-Ring)

Model Number	Gasket Type	Inner Diameter (mm)	Thickness (mm)	Reference Number	Case Number
Seiko SKX007 / SKX009 / SKX011	Bezel Gasket	34.5	0.7 to 0.8	0G345BA11	7S26-0020
Seiko SKX013 / SKX015 / SKX017	Bezel Gasket	30.5	0.7 to 0.8	0G305BA13	7S26-0030
Seiko 5KX/SRPD	Bezel Gasket	34.5	0.7 to 0.8	0G345BA11	4R36-07G0
Seiko SBDC001 / SBDC003 / SDBC031 / SBDC033	Bezel Gasket	34.0	0.7 to 0.8	0G340BA11	6R15-00G0

Caseback Gasket 

Model Number	Gasket Type	Inner Diameter (mm)	Thickness (mm)	Reference Number	Case Number
Seiko SKX007 / SKX009 / SKX011	Caseback Gasket	30.6	0.9 to 1.0	0C3060B0A	7S26-0020
Seiko SKX013 / SKX015 / SKX017	Caseback Gasket	30.6	0.9 to 1.0	0C3060B0A	7S26-0030
Seiko 5KX/SRPD	Caseback Gasket	30.8	0.5	FH3081B01	4R36-07G0
Seiko SBDC001 / SBDC003 / SDBC031 / SBDC033	Caseback Gasket	31.6	0.9 to 1.0	0J316BA42	6R15-00G0
Casio MDV-106	Caseback Gasket	36.0	0.8