Seiko Astron - SSH001J1

Movement

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)
• 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

Case Material

Titanium with ceramic/titanium bezel

Case Size

Thickness:12.2mm
Diameter:42.9mm
Lug-to-lug:50.7mm

Crystal

Sapphire crystal

Crystal Coating

Super-clear coating

LumiBrite

Lumibrite on hands and index(es)

Clasp

Three-fold clasp with push button release

Distance between lugs

21