In recent years, Seiko has re-classified its primary sports models into four different categories, and the Prospex LX is the top of the range.
What was initially the Prospex line has been broken into 5 Sports ($300 or less) at the entry-level, then the Prospex ($500-900), Prospex Luxe ($800-$2K), and Prospex LX ($5.5K+).
The Prospex LX Sky Gradation Dial Limited Edition comes in a 44.8 mm diameter titanium case with a matching bracelet and both are treated with a super-hard coating to reduce scratches. The dial features prominent applied hour markers, pencil-shaped hour and minute hands, a date aperture at 3, a power reserve indicator at 8, and a blued arrow-tipped central 24-hour GMT hand.
As the name suggests, the Prospex LX Sky Gradation Dial features a unique gradient dial that’s dark blue-black on the top half and light blue on the lower half, which according to Seiko, is inspired by “The stratosphere. The dual-color blue and black gradation dial and sapphire bezel express the boundary of the sky as seen by a spaceship pilot.”
A half black and half blue Batman-style bidirectional 24-hour bezel surround the dial, which can combine with the two dial hour hands to display up to 3 time zones simultaneously.
Equipped with an automatic caliber 5R66, this Spring Drive GMT watch can display the time in up to 3 time zones simultaneously.
Seiko and Grand Seiko both utilize the company’s proprietary Spring Drive movement technology which combines traditional mechanical watch components — such as bridges, jewels, gears, and a mainspring — with a high precision integrated circuit (IC) control system of an electronic watch to regulate the watch. The resulting hybrid movement has a high accuracy rate of – 1/+ 1 second per day or -/+ 15 seconds per month — similar to quartz — but with a second hand that smoothly sweeps like a typical mechanical, only smoother.
The automatic caliber 5R66 Spring Drive movement has 30 jewels and its single mainspring power barrel can hold a maximum reserve of 72-hours.
Prospex LX Sky Gradation Dial Limited Edition (Ref. SNR049) is limited to 400 pieces with the individual serial number engraved on caseback. Available November 2020. Retail is $5,500.