About	Details	and then some
Manufacture	Seiko	Perpetual Calendar GMT
Model reference	SBQJ00?	8F56-0080
Movement	Quartz
Caliber	8F56
Dial	Blue tatami
Case	42x46x13mm	Titanium
Lugs	Integrated
Bracelet	Titanium	19cm (extra link)
Crystal serial #	Unknown	Hardlex
Timegrapher		Accuracy:+0,3spd
Jewels	9
Serial #	08xxxx	Production: 2000-08
Condition	Excellent
Service	New battery 04-2020
Box & Papers	No box	No papers

Part of 2005's Prospex line up, this watch was produced for two years only (2003-2005), the 8F56 movement GMT featured in this specific grey dial watch was a combination for 2005 only...It has a high accuracy quartz, perpetual calendar, huge 10 year battery life and a GMT related ability to correct for timezone changes or daylight savings time without affecting the minute/second hand. This watch just keeps on ticking without the need, paradoxically, to ever “set the time”. Get whatever models you want and can find with this high end quartz movement and do it now because when they're gone they are gone. Apparently Seiko decided that the 8F caliber was just too competitive with caliber 8J inside their Grand Seikos, so they were phased out. It is a sobering thought that as even Grand Seiko did not have the calendar programmed into the movement.. which one is the better value? Indeed, there are many worthy 8F watches to compete with GS, the Red Alpinist for which you pay the same as a vintage Grand Seiko, the Prospex, the Landtrek or the Perpetual calendar. All of these are made of titanium and finished to a very high standard and usability. So, this is not merely a Seiko Titanium quartz… In fact, the Seiko Alpinist GMT Titanium SBCJ019 (long since discontinued) is one of the rarest models ever made, setting you back well over a 1000 dollars.