Citizen Case Material Codes


I think I have finally got a comprehensive list of the codes Citizen used for their case materials up to the late 1970s. There are rather more than I originally expected! And it’s possible that more were used than I have so far found, so please get in touch if you have information that I can add to the following table. Some of the codes are obscure and rare – I have yet to see quite a few of these ‘in the wild’. I have verified the codes from original Citizen casing manuals, catalogues and adverts, as well as a few that aren’t in any of those sources but are on the back of my own watches.

I hope I have described the codes correctly, bearing in mind that I have used a translator. Where the translation is unclear I’ve added a ‘?’ in the description. Please feel free to ask questions if you have any queries.

Code

Full Description

A

AEGP30

All Especially thick Gold (30 microns) Plated case

AGF

All Gold Filled case

AGWF

All White Gold Filled case

ARHF

All Rhodium Filled case

ASVP

All Silver Plated case

α

αGP or AA-GP

‘alpha’ (23K) special gold plated case

B

BL

Black (case and bezel) – hard & light black coated alloy

BLG

Black coated alloy case, Gold bezel

BLG-K

Black coated alloy case, Gold bezel, with exhibition back

BLHS

Black coated alloy case, (stainless) super Hard Steel bezel

BLIG

Black coated alloy case, mirror polished titanium nitride gold bezel

BLRG

Black coated alloy case, Rose Gold bezel

BLS

Black coated alloy case, (stainless) Steel bezel

BLTI

Black coated alloy case, Titanium carbide bezel

BLUA

Black coated alloy case, (stainless) Ultra hard Alloy (carbide) bezel

BLUG

Black coated alloy case, (stainless) Ultra hard alloy Gold (carbide) bezel

C

CCP

Citizen special thickness Chrome Plated case and bezel

CGP

Citizen special thickness Gold Plated case

CGPA

Citizen special extra thickness Gold Plated case

CL

Citizen L? , jewel case – possibly glass case

CRPG

Chrome Plated case, Pink (rose) Gold bezel

CSP

Citizen Special (stainless) Steel Plated

E

EGF

Especially thick Gold Filled

EGP30

Especially thick Gold Plate, 30 microns

G

GF

Gold Filled

GL

G? L?, crystal glass case

GP

Gold Plated

GPB-K

Gold Platec case, Black bezel with exhibition back

I

IG

I? stainless steel case with titanium nitride (i.e. Gold colour) coating, mirror finish

IGG

I? stainless steel case with titanium nitride (i.e. Gold colour) coating, mirror finish, Gold plated bezel

J

JA

Jewelry Agate, polished agate case

K

K14

14Karat solid gold case

K14WG

14Karat solid white gold case

K18

18Karat solid gold case

K18WG

18Karat solid white gold case

N

NGF

New Gold Filled case

NWGF

New White Gold Filled case

P

PDP

Palladium Plated case

PM

solid Platinum case

PMF

Platinum Filled case

PMP

Platinum Plated case

R

RHF

Rhodium Filled case

RHP

Rhodium Plated case

RN

synthetic Resin case

RN-P

synthetic Resin case with exhibition back

RSGP

Rose Gold Plated case

S

SHA

Super Hard Alloy case

SHS

Super Hard stainless Steel case

SLV

solid Silver case

SLVGP

solid Silver case, Gold bezel

SS

Stainless Steel Case

SSα

Stainless Steel case with ‘alpha’ 23K gold bezel

SSB

Stainless Steel case with Black bezel

SSG

Stainless Steel case with Gold bezel

SSIG

Stainless Steel case, with I? titanium nitride (I.e.Gold colour) mirror finish bezel

SSS

Special Stainless Steel case

SSTI

Stainless Steel case, Titanium carbide bezel

SSUA

Stainless Steel with Ultra hard Alloy (carbide) bezel

STAINLESS STEEL

stainless steel case

SVGP30

Solid Silver case, Gold Plated 30 microns bezel

T

TGP

Top Gold Plated

TI

Titanium carbide (ultra hard alloy) case

TN

Titanium Case

U

UHA

Ultra Hard Alloy (titanium carbide) case

UHAG

Ultra Hard Alloy Gold (titanium nitride) case

UHBC

stainless steel case with Ultra Hard Black Coating, mirror polished?

UHC

Ultra Hard Ceramic case

W

WD

Wooden case

WGF

White Gold Filled case

WGP

White Gold Plated case

WGPA

White Gold Plated All case, and back?

WGPG

White Gold Plated case, Gold bezel