Seiko Astron 2023 Limited Edition (SSH139)

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 function from working (in-flight mode)
• Automatic hand position alignment function

Case/Band

Case Material

Titanium (super-hard coating)

Case Size

Thickness:12.2mm
Diameter:42.7mm
Lug-to-lug:48.0mm

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

14

Other Details

Water Resistance

10 bar

Weight

105.0g

Features

• LIMITED EDITION on the case back
• Serial number engraved on the case back
• An additional silicone strap is included
• Screw case back

• * In an actual product, the case back direction might be different from the photograph.