Do I service unworn watches?

[closey]

Hello all, a little advice from all you knowlegable people if you would be so kind. I have (for now) 2 watches that spend most of there lives in a safe waiting for my son's wrist!! A 2003 omega smp (never serviced however unworn for 6 years) and a 16570.. The smp he will receive first, approx 3-4 years time and will be unworn till then, I will be alternating wear between the 16570 with my 16610 (he loves the sub but will not get that till I have no further use!!!!) MY QUESTION... Do I have unworn watch(s) serviced now and leave tucked up in readyness OR wait until a later date? The 16570 will be worn regular and new so not an issue as yet however the Smp will never see daylight until its gifted!

Thanks in advance

Regards Closey