RALF TECH WRB Automatic California 39mm
One of watchmaking’s most recognisable dial designs, interpreted through RALF TECH’s compact professional diver.
The WRB Automatic California combines the versatile 39mm WRB case with the unmistakable mixed-numeral layout that gives the California dial its character.
Roman numerals occupy one half of the matte-black dial, Arabic numerals the other — a design originally conceived to make reading the time immediate and unambiguous. Warm Old Radium Super-LumiNova® and gold-toned hands add a subtle vintage atmosphere without turning the watch into a reproduction of the past.
Inside is the RTA003 automatic movement, offering up to 40 hours of power reserve. A screw-down crown, curved sapphire crystal and professional 120-click diving bezel provide 200 metres / 660 feet of water resistance.
A hand-sewn vintage black calfskin strap is accompanied by a black Tropic silicone alternative.
Only 100 pieces will be produced.
Why buy it?
Because very few simple three-hand watches have a dial this distinctive.
At 39mm, the California feels individual without becoming dominant, while the genuine diving capability underneath gives the vintage-inspired design real substance.
A historic dial, a modern professional watch, and only 100 opportunities to own one.
















