Seiko Think The Earth WN-2 Quartz Watch

Technical characteristics

Type

Quartz wristwatch

Dial feature

1/580 million scale model of Earth

Case material

Titanium / Aluminum / Stainless Steel

Condition note

Missing secondary bezel

Date of origin

2001

Place recorded

Japan

Maker / attribution

Seiko

Watch movement type

Quartz

Design

Visible features

• Earth model rotates on a 24-hour cycle • Hook-shaped hour hand and orange dot minute marker • Removable core module for use as a desk clock • Peripheral 24-hour dial scale

Design and Display

The Seiko Think The Earth WN-2 features a distinct display centered on a 1/580 million scale model of the northern hemisphere. This rotating globe sits beneath a domed Hardlex crystal and completes one full rotation every 24 hours, intended to represent the Earth's actual rotation. Time is indicated by two markers: a silver hook-shaped hour indicator and a small orange minute marker that travel along a 24-hour scale printed on the peripheral bezel. The watch is designed with a removable internal module constructed from titanium and aluminum. This core can be detached from the external strap and frame assembly, allowing the watch to function as a standalone desk clock.

Construction and Materials

The outer watch housing is composed of titanium and aluminum, paired with a stainless steel deployant clasp on the original black strap. The dial assembly is protected by a Hardlex crystal. The auction description notes that the titanium and aluminum case remains in a state showing little wear, and the crystal is free of marks. The internal module contains the quartz movement and the globe display. According to the auction description, the watch has recently been serviced with a new battery and is currently keeping time. The set is noted as being incomplete due to the absence of a secondary silver bezel.

Provenance and Documentation

This watch was produced in 2001 as part of a collaboration between Seiko and the Japanese non-profit organization Think the Earth Project. It is presented as a complete set including the original manufacturer's box and various instruction booklets. The object is catalogued with the reference number WN-2. While the watch is documented as a complete set, the vendor explicitly states that the secondary silver bezel is not included. The serial number provided for this specific example is 87XXXX.

Identification

Reference

WN-2

Serial number

87XXXX

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.