C65 Trident Diver SH21
Dive into vintage chic
Boasting a matte-blue dial with power reserve and small second subdials, the C65 Trident Diver SH21 Limited Edition blends ’60s visuals with an automatic version of our in-house chronometer, Calibre SH21. Just 150 have been made.
Building on the foundation of the original C65 Trident Diver – which boasted rectangular indexes, Arabic numerals and baton-shaped hands with Old Radium Super-LumiNova® – the most obvious additions here are the two subdials and a date wheel. Should you take the watch off, it’ll run for five days without further winding: something you’ll be able to monitor on the power-reserve subdial.
Having been influenced by vintage dive watches, the C65 manages to channel several ’60s cues, such as the slim aluminium bezel with applied numerals; a ‘glass box’ sapphire crystal and push-in crown. But because this is a serious diving instrument, water-resistance of 150m.
Vintage looks. Modern construction. It’s your kind of watch.
Calibre SH21 automatic power-reserve movement

Calibre SH21 Automatic Power-Reserve Chronometer
Designed by our then technical director Johannes Jahnke, Calibre SH21 was the first commercially viable mechanical movement from a British watch brand in over 50 years. And thanks to its ingenious twin-barrel construction, Calibre SH21 will deliver 120 hours – five whole days – of timekeeping when fully wound.
This particular version also boats a power-reserve complication. The introduction of an automatic power reserve complication to Calibre SH21 was achieved with a 28-piece modification to the base movement, bringing the total number of jewels to 35.
In addition to providing impeccable timekeeping, Calibre SH21 has also received a visual upgrade. Its bridge and rotor have been redesigned to allow greater visibility of the twin barrels, and boast a 'Colimaçoné' finish, engraved with our twin-flag pattern.
When fully wound, its twin barrels deliver five days' COSC-certified timekeeping. This places it among the most accurate of Swiss-made, power-reserve chronometers.

Old-school class
A watch that’s so retro-chic has no right to be so contemporary. But the C65 Trident Diver SH21 brings together COSC-certified timing with ultra-modern build quality.

Box retro
Glass-box crystals were a feature of 1960s watches – adding character and clarity to the watch-wearing experience. The subtly curved crystal here brings those days back.

Light it up
Made of 316L marine-grade steel, the light-catcher™ case wears slim on the wrist, yet manages to be waterproof to 150m. Your cuff will love slipping over it.

Air apparent
The brushed aluminium bezel can be used to time how much air you have left when you’re on a deep dive. And the way it clicks when you turn it will reassure you of its quality.

Find out about SH21
Calibre SH21 is Christopher Ward’s in-house mechanical watch movement. It was launched in 2015 and is the first commercially viable mechanical movement from a British watch company in 50 years.