Caliber Number

5X53

Movement Type

GPS solar

Precision

±15 seconds per month (without receiving a GPS signal and at temperatures between 5°C and 35°C )

Power reserve

Operating for approx. 6 months (when fully charged), power save: approx. 2 years

Jewels

12

Functions

Overcharge prevention function
Power save function
Perpetual calendar to the february 28, 2100
World time function (39 time zones)
Dual-time function
Day display
Power reserve indicator
Time transfer function (Switching between the main-dial and sub-dial)
GPS signal reception function (Time zone adjustment, automatic time adjustment, manual time adjustment)
Satellite acquisition status display function
Reception result display function
DST (Daylight Saving Time)
Function to prevent the GPS signal reception (in-flight mode)
Automatic hand position alignment function

Water Resistance

10 bar

Features

Seiko Astron GPS Solar Chronograph - SSH117J1