Cro WatchesSeiko 6R15-00E0
Seiko Alpinist, 2006-2019. What it is, how to date it, how to check it's original, and what it's worth.
The Seiko 6R15-00E0 is a Seiko Alpinist (SARB017 (green)). It runs on Seiko's calibre 6R15, an automatic movement with 23 jewels, beating 21,600 times an hour. It can be wound by hand, and the seconds hand stops while you set the time. Seiko made the 6R15 from about 2006 to 2021. The Alpinist with the inner compass ring. Very popular; original bracelet or strap adds value.
How old is it? The first digit of the serial number on the caseback is the last digit of the year, the second is the month (1–9, then O, N, D). On a 6R15, made 2006–2021, a serial starting 15 means May 2011 or 2021. Our Seiko Identifier works it out for you.
Is it original? The small dial code at 6 o'clock should start with 6R15, like the caseback. If it starts with another number, the dial was made for a different model (a replacement dial).
Specifications
| Movement | Calibre 6R15, automatic |
|---|---|
| Jewels | 23 |
| Beat rate | 21,600 per hour |
| Hand-winding | yes |
| Hacking seconds | yes |
| Power reserve | about 50 hours |
| Calendar | date |
| Made | about 2006–2021 |
| Known as | SARB017 (green) |
Have a 6R15-00E0? Check yours in seconds: open the Seiko Identifier with 6R15-00E0 filled in.
Questions
Can I wind a Seiko 6R15-00E0 by hand?
Yes, turn the crown in its normal position.
How do I set the day and date on a Seiko 6R15-00E0?
Most 6R15 watches either change the day when you press the crown, or have a quickset when you pull the crown out one click. Never change the date between 9 pm and 1 am. Step by step: crowatches.com/seiko-set-day-date.html
How old is my Seiko 6R15-00E0?
Read the serial on the caseback: the first digit is the last digit of the year, the second the month. The 6R15 was made about 2006–2021, which fixes the decade.