Seiko

This is the first in a series of short quizzes to explore, explain and enjoy Grand Seiko Technology Grand Seiko produces a small assortment of movements: A. Mechanical hand wind B. Mechanical automatic 28800 C. Mechanical automatic 36000 D. Spring Drive h...  

1. 43 hours - Mechanical hand wind (guesswork, and by process of elimiation) 2. 55 hours - Mechanical automatic 36000? (blind shot in the dark) 3. 72 hours - Spring Drive automatic (9R65/9R15 have 3 days of power reserve) 4. 88 hours - Mechanical automati... 

Is made of Spron. Not sure of the spelling off the top of my head. Thanks for the quiz! Brandon

Best wishes Alkiro

I had this 9S85 in 2 watches and it’s the most accurate ever!!!

A —> 4 B —> 1 C —> 2 D —> 5 E —> 3 F —> 6 Great game dear Mike. Best wishes Alkiro

A. Mechanical hand wind 1. 43 hours B. Mechanical automatic 28800 3. 72 hours C. Mechanical automatic 36000 2. 55 hours D. Spring Drive hand wind 5. 192 hours E. Spring Drive automatic 4. 88 hours F. Quartz 6. 26000 hours Steel in Main Springs - SPRON610 ... 

Here’s a clue - some of the running time options are unnecessary...

SPRON is a spring material developed by Seiko. There are several flavors — 100 & 510. In summary: “SPRON 510 is a strain age-hardening type Co-Ni-Cr-Mo alloy with material characteristics that are more advanced than SPRON 100. It is non-magnetic and featu...  

Here are the correct responses: Grand Seiko produces a small assortment of movements: A. Mechanical hand wind 72 hours B. Mechanical automatic 28800 72 hours C. Mechanical automatic 36000 55 hours D. Spring Drive hand wind 192 hours E. Spring Drive automa...