5 Actus before Actus
The Seiko 6106 5Actus was a product line launched in the '60s and continued in the '70s, it consisted of both Seiko 5 Actus and the regular Actus - with an emphasis on styling. This particular innovative design was targeted at the baby boomers of that time but remains in demand with vintage watch collectors right up to the current day and age.
The finishing on the Actus usually is exceptional for a number of reasons. First of all, apart from the uniquely avant garde case design, the dial is so well spaced out that the bezeled day/date window is somehow hardly obtrusive. This may be to the relief of the firm resistance some have when it comes to watches with these indicators paired. Finally, on the versions with applied indices, the chunky highlighted hands look sporty but classy at the same time. Lume is often present and in the Silverwave a given. These waterproof screwdown watches usually featured caliber 6306, an update of the earlier 6105 “captain Willard” - inherently better in both accuracy and maintenance, due to the larger balance wheel, the modular automatic winding design, and some other features.
Writing? There’s not that much and the little that’s there is purposeful and well distributed. The label “SS,” for instance means Second Stop and indicates the hacking feature. Some call it the “Seiko Spirit.” When pulling the crown to set the hands, all time automatically stops.