Seiko “Aquatimer”

BrandSeiko
Model6139-7070
aka. ”Aquatimer” or “Baby Jumbo”
Year1976
CaliberCal 6139B
Case nr 613096
DetailsSize 39/13/19 (w/h/lug)
Links

Searchdba.dk / “Seiko 6139”


The 7070 is a welcome departure from the mostly sports oriented layouts of the 6139 roster. The sweeping lines of the tonneau case and steeply angled bezel offer a classic look with versatility. Beneath the bevelled hardlex sits a tri-level dial in deep aquamarine blue in a matte finish so fine, it appears almost soft to the touch. In stark contrast, the hands and lengthy markers are a bright white and stand out crisply against the dial. The matching chapter makes for a flawless frame, and is marked in a tachy-metric scale.

Adjust day/date on a 6139

The quickset mechanism on your watch is a two position push type. Push the crown in once and the date wheel will turn. Keep pushing it deeper to it’s second position and the day wheel will turn. To set the date, put the time somewhere between 0300 and 0900, set the day and date to yesterday, then cycle through the hours until the day and date change over to today. Don’t forget that whichever language you set the day to is the language that will be displayed. also don’t forget to cycle the hours enough to account for AM or PM.