Shown: reference SSH177J1 · Photo: Seiko
Seiko

Astron SSH177J1 Reference SSH177J1

Overview

A 44.1 mm Titanium (super-hard coating) case defines the Seiko Astron SSH177J1. Inside is the Seiko calibre 5X83. The watch is water resistant to 100 metres. One reference is listed, SSH177J1.

The Astron name goes back to 25 December 1969, when Seiko marketed the Quartz Astron, which it describes as the world's first quartz watch. About the Seiko Astron

Case diameter
44.1 mm
14.4 mm thick
Movement
Calibre 5X83
Perpetual calendar, Chronograph
Water resistance
100 m
Case material
Titanium (super hard coating)

Specifications

Specifications from Seiko. Last checked . Sources

Case

Diameter
44.1 mm
Thickness
14.4 mm
Lug width
14 mm
Material
Titanium (super-hard coating)
Crystal
Sapphire
Water resistance
100 m
Weight
110 g

Dial

Luminescence
LumiBrite on hands and index(es)

Movement

Calibre
Seiko 5X83
Type
GPS solar
Jewels
14

Bracelet or strap

Clasp
Easy-adjust three-fold clasp with push button release

Not yet recorded: lug-to-lug, case back, shape, colour, indexes, hands, years.

Sources

  • Seiko: case, water resistance, dial, movement, bracelet. View sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementSeiko calibre 5X83Specifications and every watch that uses it

Astron SSH177J1 questions

What size is the Seiko Astron SSH177J1?

The Seiko Astron SSH177J1 has a 44.1 mm case.

What movement does the Seiko Astron SSH177J1 use?

It uses the Seiko calibre 5X83.

What is the Seiko Astron SSH177J1 case made of?

The case is titanium (super-hard coating).

Is the Seiko Astron SSH177J1 water resistant?

It is rated to 100 m.

About the Seiko Astron

The Astron name goes back to 25 December 1969, when Seiko marketed the Quartz Astron, which it describes as the world's first quartz watch. Seiko revived the name in 2012 for its first Astron GPS Solar watch. Current Astron GPS Solar models connect to the GPS network to set the time zone at the press of a button and run on light alone. Most cases are titanium with a super-hard coating. Calibres include the 3X62, the 5X53 dual-time, the 5X63 dual-time chronograph and the 5X83, and most run for about six months on a full charge. Seiko lists cases from 39 mm to 44.1 mm, water resistant to 10 or 20 bar.

Sources: Seiko Astron, The Astron History, GPS Solar Astron 10th Anniversary Limited Edition, Seiko Astron HAB001, Manufacturer product page, Manufacturer product page, Manufacturer product page, Manufacturer product page, Manufacturer product page