Our dear Ronald Held recently suggested that a thread dedicated to white metals was long overdue. So, here's one.
The list I have compiled is as follows (in “alphabetical” order). It is certainly incomplete: so please feel free to suggest other white metals and I will add to it as we go along: it will be a collaborative effort.
- Aluminium
- Canopus gold
- Nickel
- Palladium
- Platinette
- Platinum
- Silver 925
- Stainless steel
- Carburised steel
- Tantalum
- Titanium
- High-Intensity Titanium
- Titanium & Bulk Metallic Glass (BMG)
- Ceramised titanium
- White gold (rhodium plated)
- White gold (gray gold)
I tried to choose watches that aren't shown too often.
And, of course, tell us which white metal is your favorite!
Best, Emmanuel
Credit to all watches except otherwise mentioned : Monochrome
ALUMINIUM
CENTIGRAPHE SPORT, REF. CTS
credit: A Collected Man
CANOPUS GOLD
OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL CO-AXIAL MASTER CHRONOMETER, REF. 310.60.42.50.02.001
Canopus Gold is a proprietary alloy, made of 75% of gold, 20% of palladium, and 5% of rhodium and platinum.
NICKEL
OMEGA 1920s POCKET WATCH
credit: TrodelTony on Etsy
PALLADIUM
CARTIER TANK MC SKELETON
credit: Equation du Temps
PLATINETTE
INGERSOLL 1920s WRIST WATCH
Inside the case back, the case material is mentioned as “Platinette - Pure white throughout”, the name given for a specific white metal alloy (other companies had their own variations such as silveroid and silverine).
credit: sellingantiques.co.uk
PLATINNUM
DANIEL ROTH TOURBILLON PLATINUM, REF. DAAG01A1
SILVER 925 TUDOR BLACK BAY FIFTY-EIGHT 925, REF. M79010SG-0001
STAINLESS STEEL IWC PORTOFINO CHRONOGRAPH 39, REF. IW391503
CARBURISED STEEL FERDINAND BERTHOUD RÉGULATEUR SQUELETTE FB RS
TANTALUM NICOLAS DELALOYE RENAISSANCE TANTALUM 39MM
TITANIUM HANHART 417 TI DESERT PILOT LIMITED EDITION, REF. H701L.250-1715
HIGH-INTENSITY TITANIUM GRAND SEIKO HERITAGE HI-BEAT 36000 GMT 44GS 55TH ANNIVERSARY LIMITED EDITION, REF. SBGJ255
High-Intensity Titanium is the name of an alloy Grand Seiko uses on the vast majority of its titanium-cased watches: this alloy looks closer to steel.

TITANIUM & BULK METALLIC GLASS (BMG) AUDEMARS PIGUET ROYAL OAK PERPETUAL CALENDAR OPENWORKED 150TH ANNIVERSARY, REF. 26585XT.OO.1220XT.01