Christopher Ward Calibre SH21 (CW-001)
Factory specs
- Caliber
- SH21 / CW-001
- Made in
- Switzerland
- Frequency
- 28,800 bph (4 Hz)
- Power reserve
- 120 h
- Jewels
- 31
- Hacking
- Yes
- Hand winding
- Yes
- Accuracy
- —
- Diameter
- —
- Height
- —
- Functions
- Hours, Minutes, Seconds, Date
Christopher Ward's first in-house movement, developed with Synergies Horlogères (Biel) and introduced in 2014, the year the two companies merged; the brand now calls it Calibre CW-001 ("formerly SH21", Oracle of Time). Twin mainspring barrels give a 120-hour (five-day) power reserve at 4 Hz; every SH21 is COSC-certified (-4/+6 s/day). SJX describes it as a double-barrel design based on the Valjoux 7750 architecture. Professional Watches gives 164 components, 31 jewels and a tungsten rotor on ball bearings. Jewel counts differ by version: the brand lists 31 for "CW-001/AXC" (Twelve X Black Shadow) and 26 for the skeletonised "SH21 CA" (Twelve X Ti); 31 is recorded here. Date and stop-seconds: the Grail Watch wiki lists a date wheel in the base automatic, and the Twelve X handbook says crown position 3 stops the seconds hand (the skeleton versions have no date display). Grail Watch gives the size as 14 lignes (about 31.6mm) but its height figure (13.45mm) is implausible for a movement, so diameter and height are left blank. Hand-wound and module variants exist (the brand mentions a skeletonised hand-wound SH21).
Watches with the Christopher Ward Calibre SH21 (CW-001)
| Watch | Price from | Movement | Dia. mm | Thick mm | Crystal | Micro-adjust |
|---|---|---|---|---|---|---|
Christopher Ward Twelve X Ti |
$5,375 | Christopher Ward Calibre SH21 (CW-001) | 41 | 12.3 | Sapphire | On-the-fly |
Christopher Ward Twelve X Black Shadow |
$5,715 | Christopher Ward Calibre SH21 (CW-001) | 41 | 12.3 | Sapphire | On-the-fly |
Sources
- Christopher Ward Loupe, Calibre SH21 (twin barrels, 120 hours)
- Professional Watches, The Christopher Ward manufacture caliber SH21 (164 components, 31 jewels)
- Grail Watch Wiki, SH21
- SJX, Christopher Ward introduces the C12 Loco (SH21 background)
- Oracle of Time, Twelve X Black Shadow (CW-001, formerly SH21)
- Christopher Ward, The Twelve X owner's handbook

