Seiko SSH157J1

Astron | Astron GPS Solar 5X | Limited Edition | Men's
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Astron ‘Starfull Sky’ 5X GPS Solar Chronograph Limited Edition

£2,240

LIMITED EDITION OF 1,500 PIECES
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Description

Astron was created from Seiko’s passion for innovation, and now, under the theme of ‘Solidity,’ a series of solar timepieces have been created for the future of innovation.

This dial of this timepiece features a stamped star-shaped pattern – a process difficult to achieve on a dial with a solar cell. In a light blue colour, the dial aims to portray the glow of the stars in the night sky. Under a dual-curve sapphire crystal glass, the hands and indices are coated with a layer of Lumibrite for legibility in the dark. The case is made from lightweight titanium, with a super-hard coating. This model has a black ceramic bezel for improved scratch resistance.

This 5X83 calibre has solar GPS functionality, allowing for instantaneous and accurate changing of the time, no matter where you are in the world. It features a chronograph function, allowing for the measurement of elapsed time up to 1/20th of a second. It can be measured on its 12 o’clock sub dial. Whereas with other solar watches, the dial is restricted by the need for maximum visibility of the solar cells and so decoration must be minimal, this movement is highly energy-efficient, allowing for colours and textures on the dial.

Seiko Astron: the world’s first GPS solar watch – powered by light, automatically adjusted to your exact time through the latest satellite technology.

* In the actual watch, the case back direction may differ from the photograph.

Specifications

Movement
Accuracy: ±15 seconds per month (±1 second per day)
Calibre: 5X83
Movement Type: GPS Solar
Power Reserve: Operating for approx. 6 months (when fully charged), power save: approx. 2 years
Jewels: 14
Exterior
Dial Colour: Blue
LumiBrite: Lumibrite on hands and indexes
Case Material: Titanium (super-hard coating) with ceramic bezel
Strap/Bracelet: Titanium
Clasp: Three-fold clasp with push button release
Case Diameter: 43.4mm
Case Thickness: 13.4mm
Case Length: 49.5mm
Lug Width: 14.0mm
Other Specifications
Water Resistance: 10 bar
Weight: 117.0g
Crystal Coating: Super-clear coating
Crystal Type: Dual-curved sapphire crystal
Other Specifications: LIMITED EDITION on the case back, Screw case back, Serial number engraved on the case back, Allergy-safe metal, Clasp with Smart Adjuster function
Watch Function: Automatic hand position alignment function, Chronograph up to 12 hours in 1/20 second increments, Day display, DST (Daylight Saving Time), Dual-time function, Function to prevent the GPS signal reception (in-flight mode), GPS signal reception function (Time zone adjustment, automatic time adjustment, manual time adjustment), Overcharge prevention function, Perpetual calendar until February 28, 2100, Power reserve indicator, Power save function, Reception result display function, Satellite acquisition status display function, Time transfer function (Switching between the main-dial and sub-dial), World time function (38 cities)
Magnetic Resistance: 4,800 A/m

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