All Seiko lines › Astron › Other Astron
Seiko Astron, 42.8 mm, 14.6 mm thick (5X53)
2 versions of this watch are on Seiko's own sites right now, across 8 regions. Last checked Nov 13, 2026.
Estimated US price: About $3,100 to $4,425, converted from Seiko's list prices in EUR, INR, MYR and more.
Retailers ask: no retailer listing matched yet.
Photos are Seiko's own, shown from Seiko's sites. Click a photo to jump to that version.
- Calibre
- 5X53
- Case diameter
- 42.8 mm
- Thickness
- 14.6 mm
- Lug to lug
- 50.3 mm
- Variants listed now
- 2
- Regions
- 8
Listed means the watch was on an official Seiko regional site or store at the last check. It does not mean it is in stock, and it does not tell us whether Seiko is still making it.
Versions listed now
Same case and movement in every row. What changes is the colour, the strap or bracelet, the finish and where Seiko sells it. Seiko's spec sheets don't state dial colour, so a colour appears only where Seiko's US store tags one.
| Photo | Reference | Colour | Strap / bracelet | Case | Edition | Listed in | Seiko list price | Buy |
|---|---|---|---|---|---|---|---|---|
 | SSH071 Also coded SSH071J1 | Not published | Not stated | Titane (revêtement anti-éraflure) avec lunette en céramique Seiko's regional wording | Edizione limitata sport titanio quadrante verdeSport Titanium Green Dial Limited EditionTitânio Sport | Mostrador Verde de Edição Limitada | 6 regions | 2,800 EUR France · Nov 13, 2026 about $3,100 in US dollars | No seller matched yet |
Where Seiko lists it (6 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | ||||||||
 | SSH073 Also coded SSH073J1 | Not published | Not stated 107 g | Titanio (revestimiento súper endurecido) con bisel de cerámica Seiko's regional wording | Kintaro Hattori 16th Anniversary Limited Edition | 3 regions Malaysia, Singapore, Spain | 4,000 EUR Spain · Nov 13, 2026 about $4,425 in US dollars | No seller matched yet |
Where Seiko lists it (3 sites) and its list pricesBuying options (0)No seller offer has been matched to this exact variant yet. | ||||||||
Where to buy
No retailer listing has been matched to a version on this line yet.
Estimated US prices use Seiko's US list price where there is one. Otherwise they are the middle of Seiko's list prices in other countries, converted at rates dated Nov 12, 2026 from ExchangeRate-API (free open endpoint). Those list prices include each country's sales tax, so a converted figure usually runs higher than a US price would. Retailer prices are asking prices on the date shown, not sold prices, and leave out shipping, tax and import charges.
The build
| Movement | GPS Solaire Some variants are published as: GPS solar | Seiko product page |
|---|---|---|
| Functions | Fonction de prévention de surcharge Fonction Économie d'énergie Calendrier perpétuel jusqu'au 28 février 2100 Fonction Heure mondiale (39 fuseaux horaires) Fonction Double fuseau horaire Affichage du jour Affichage de la réserve de marche Fonction de transfert du temps (Basculement entre le cadran principal et le sous-cadran) Fonction de réception du signal GPS (Réglage du fuseau horaire, réglage automatique de l'heure, réglage manuel de l'heure) Fonction d'affichage du statut d'acquisition des données satellites Fonction d'affichage des résultats de réception DST Heure d'été Fonction pour empêcher la réception du signal GPS (mode avion) Fonction d'alignement automatique de la position de l'aiguille | Seiko product page |
| Power reserve / battery | Fonctionne environ 6 mois (en pleine charge), en économie d'énergie : environ 2 ans Some variants are published as: Aprox. 6 meses (cuando está completamente cargado), ahorro de energía: aprox. 2 años | Seiko product page |
| Water resistance | 20 bar Some variants are published as: 20 bares | Seiko product page |
| Crystal | Saphir bombé extérieur et incurvé intérieur Some variants are published as: Zafiro con doble curvatura | Seiko product page |
| Lug width | 21 mm | Seiko product page |
| Seiko case codes | 5X53-0BA0, 5X53-0BB0 | Seiko catalog data |
Why these share a page
Every version here is published by Seiko with calibre 5X53 and either the same Seiko case code or the same case size. 4 reference codes lead to this page.
Related lines
- Seiko Astron, 42.8 mm, 14.7 mm thick (5X53)
Same calibre and diameter, different published case
Holden's Watch Desk is an independent catalog. It is not affiliated with, sponsored by or endorsed by Seiko. Seiko and its model names are trademarks of their owners, and the product photos are Seiko's, shown from Seiko's own sites to identify each watch. To report a mistake or ask for something to be removed, email holden@holdenswatchdesk.com.