“MACH: SEIKO MARINE QUARTZ CRYSTAL CLOCK SYSTEM;
MODEL: QC – 6M5 (VERSION 4.1);
MAKER: SEIKO TIME SYSTEMS INC.;
ORDER NO. = HL – S535 / 08J ;
MFG NO. = 308H10U” “TWO HANDS SLAVE CLOCK
MODEL = MCS – 009
TYPE = DRIP-PROOF WALL-MOUNTING TYPE
30 SECONDS SECONDARY CLOCK FOR
MARINE USE.
SUPPLY VOLTAGE = DC24, 12mA

MAKER: SEIKO TIME SYSTEM INC.
” SEIKO TIME SYSTEMS INC..QC-6M5.NA