DIY Black Quartz Clock Movement Kit

A versatile black quartz clock movement kit tailored for do-it-yourself clock builders and hobbyists. The movement unit is housed in an ABS shell measuring 56 × 56 × 16 × 14 mm and supports HR1688-31 jumping seconds functionality. Shaft length is 31 mm overall, with 24 mm of threading — compatible with wall clock panels approximately 20 mm thick. Three black aluminium hands are provided: hour hand 68 mm, minute hand 98 mm, seconds hand 100 mm (all measured from centre hole), fitting clock faces between 220 mm and 300 mm in diameter. Accuracy is ±30 seconds per month at 25°C; crystal frequency is 32.768 kHz; current draw is under 190 µA at 1.5 V DC. It operates across 1.3–1.7 V and −10°C to +50°C. Approximate battery life: 8 months using one AA battery (not included). Package contents: 1 movement, 1 hour hand, 1 minute hand, 1 seconds hand, 1 golden hex nut, 1 golden washer, and 1 black rubber pad. Hands include a removable protective film for scratch-free handling.