Casio 950 Alt 6100 stuck in auto measurement. Looking through online manual I can't figure how to switch to manual measurement mode. Any advice? Do I need to let the memory fill
Vtg 1990s Casio ALT-6000 Alti-Thermo Twin Sensor Digital Watch Module 950 Japan | eBay
nettoyage d'une casio 950 alt-6000
El Casio Protrek ALT-6100-1V Twin Sensor Especial Edition | Relojes Especiales, EL foro de relojes