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Seiko Astron

Seiko Astron

SolarTitanium

Ref. SSH073J1

Collection: AstronCase size: 42.8mmMovement: 5X53

The Seiko Astron, reference SSH073J1, is a GMT watch with a 42.8 mm titanium case. This is a limited edition of 2500 pieces. The case measures 14.6 mm thick, with a water-resistance rating of 200 metres. Solar-powered calibre 5X53 contains 12 jewels and operates for approximately 6 months when fully charged. Over the dial is a dual-curved sapphire crystal with a Super Clear coating. A three-fold clasp with push-button release fastens the watch; the dial has LumiBrite on the hands and indices. Movement accuracy is plus or minus 15 seconds per month without signal reception at temperatures between 5 and 35 degrees Celsius. The bezel has a ceramic insert.

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Last updated 9 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

Limited Edition

2,500 pieces

CASE

Diameter

42.8mm

Thickness

14.6mm

Lug Width

21mm

Case Material

Titanium

Water Resistance

200m

Crystal

Sapphire Crystal

Bezel Material

Ceramic

MOVEMENT

Movement Type

Solar

Caliber

5X53

Jewels

12 jewels

BRACELET/STRAP

Clasp Type

Fold Clasp

FEATURES & COMPLICATIONS

GMTLimited EditionLuminous handsLuminous indicesSolar watch

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